Three black pieces from our natural jade jewelry collection demonstrate the problem with this color. The carved barrel bead bracelet reads deep black-gray across its 13.3 × 12.5 mm barrels. The carved dragon bracelet looks near-black on the wrist, its 24 × 17 × 11 mm dragon head reading as pure silhouette. The Cuban link bracelet does the same across a chain.
Put a flashlight behind each of them and you get three different answers. That is not a flaw in the photography. Black is the color where what you see is almost never what the material actually is.
In short: black jade is not one material. The name covers Mo Cui (omphacite-rich jadeite jade, black face-up and green under transmitted light), black-chicken jadeite (jadeite-rich, which shows gray rather than green), graphite-bearing jadeite, and black nephrite — plus obsidian, dyed chalcedony and glass that are not jade at all. Its meaning in Chinese tradition runs through the Water phase and the northern direction, which is documented. And because appearance reveals so little, black is the color where a laboratory report matters most.
What Is Black Jade?
Black jade is not one material — it is a trade term covering several minerals that share a black to near-black appearance in ordinary light.
Two mineral families are involved. In English jade means jadeite jade or nephrite jade. The Asian trade also uses Fei Cui for a family of closely related pyroxene jades that may be dominated by jadeite, omphacite or kosmochlor, and that distinction matters more for black than for any other color: much of the material sold as Mo Cui is omphacite-rich rather than jadeite-rich.
| Market name | Mineral basis | In ordinary light | Under a strong flashlight |
|---|---|---|---|
| Mo Cui 墨翠 | Jadeite jade, mainly omphacite | Lacquer black | Transmits emerald to dark green |
| Black-chicken jadeite 乌鸡种 | Jadeite jade, mainly jadeite, colored by amphibole and magnetite | Gray-black to black | Does not transmit green — shows gray-white to gray-black |
| Graphite-bearing black jadeite | Jadeite jade with graphite | Gray-black to black | Weakly translucent to opaque |
| Black nephrite 墨玉 | Nephrite, tremolite with graphite | Even black, oily luster | No green tone at all — black to gray-black |
| Imitation "black jade" | Obsidian, dyed chalcedony, serpentine, glass | Variable | Variable |
On a Chinese laboratory report, both Mo Cui and black-chicken jadeite are identified as jadeite jade (Fei Cui). Black nephrite is identified as nephrite — and note that the Chinese gem name Hetian jade functions as a species name under the national standard, so it does not by itself establish that a piece came from Hotan in Xinjiang.
The important line in that table is the last column, because the first column looks the same across every row.
Black jadeite vs black nephrite
| Black jadeite | Black nephrite | |
|---|---|---|
| Mineral family | Pyroxene (single-chain silicate) | Amphibole (double-chain silicate) |
| Main minerals | Omphacite or jadeite | Tremolite–actinolite |
| What makes it black | Iron in omphacite; dark minerals between grains; graphite | Graphite inclusions; iron-rich actinolite |
| Specific gravity | ~3.33 — noticeably heavy in the hand | ~2.95 — lighter at the same size |
| Refractive index | ~1.66 | ~1.61 |
| Luster | Vitreous — bright, sharp, rigid | Greasy — soft, oily, inward |
| Structure | Granular fibrous interlock; cleavage flashes visible | Felted fibers; no grain visible to the eye |
| Under a flashlight | Mo Cui transmits green; black-chicken transmits gray | Black or gray-black, never green |
| Named on a report as | Jadeite jade (Fei Cui) | Nephrite (Hetian jade) |
Is black jade real jade?
Yes. Natural jadeite jade and natural nephrite both occur genuinely black or near-black. The difficulty is not whether black jade exists — it is that black opaque materials are the hardest category in gemmology to identify by eye. Dyed chalcedony, volcanic glass, serpentine and manufactured glass all polish into convincing black beads, and treatment is a separate question that appearance cannot answer either.
For the wider material background, see our guide to jadeite and nephrite as materials.
Why Does Black Jade Look Black?
Most black jade is not actually black. It is very dark green, gray or brown material that absorbs almost all the light reaching it at normal thickness.
Color is not only pigment. What reaches your eye depends on how much light enters the stone, how far it travels, how strongly it is absorbed and scattered, and how thick the object is.
Reflected light is normal viewing: light strikes the surface and returns. If a dark green material absorbs most wavelengths before light can travel through it, the surface reads as black even though the body color is green.
Transmitted light is what a flashlight behind a thin edge produces. Fine Mo Cui then reveals emerald or dark green that is completely invisible face-up.
This is why the same bracelet honestly photographs as black in one shot and green in another. Both are true.
What causes the black color in jade
There is no single cause, and any page telling you black jade is caused by one substance is wrong:
- In Mo Cui, iron in the omphacite structure produces strong green coloration together with reduced transparency
- In black-chicken jadeite, amphibole and magnetite between and within the jadeite grains absorb and scatter light
- Graphite produces black areas in both jadeite and nephrite from certain deposits
- Iron-rich actinolite and ferro-actinolite can make nephrite read black at normal thickness even where thin sections show green, yellow or brown
- Thickness, dense fractures and coarse grain boundaries reduce transmission further
Thickness alone changes the answer. A thick Mo Cui carving may pass almost no light while a thin edge of lesser material opens up green.
Mo Cui, black-chicken jadeite and black nephrite under light
This is the single most useful thing to know about black jade, and it takes one flashlight to check.
Mo Cui is lacquer black in ordinary light and transmits emerald to dark green under a strong beam. The green is the body color; the black is what thickness does to it.
Black-chicken jadeite is gray-black to black in ordinary light and does not transmit green. It shows gray-white to gray-black instead, often uneven, because the darkness comes from amphibole and magnetite dispersed through jadeite rather than from a green mineral.
Black nephrite is evenly black with an oily luster, and transmits black to gray-black with no green tone at all.
Our carved dragon bracelet is black-chicken jadeite, not Mo Cui — which is why it behaves the way it does under a beam. Both are correctly identified as jadeite jade on a report. They are different materials with different characters, and a seller who calls everything Mo Cui is not distinguishing between them.
From the workbench. Selecting rough at Hpakant I use a flashlight constantly — to read color distribution, to find fractures, to see how a stone changes from skin toward interior. I do not use the flashlight reaction to certify anything. A dark skin, a pit name, or one bright green window tells me nothing conclusive about composition, treatment or exact origin. That is what the laboratory is for.
What Does Black Jade Mean?
Black jade is most consistently associated with protection, resilience, grounding and quiet authority — qualities of restraint rather than display.
That association is documented rather than assigned. The Zhou li, the Rites of Zhou, sets out six jade forms for heaven, earth and the four directions, and for the north it specifies 玄璜, a dark half-disc jade. Black belonged to the northern direction in the earliest ritual scheme we have on record.
The assignment carries into Five Elements thinking, where black corresponds to the Water phase, to the north, to winter, and to the trigram kan. The qualities attached to Water in that system are depth, stillness, adaptability, inward reflection and the conservation of energy — 主智、主藏, associated with wisdom and with keeping things held rather than shown.
There is one association that belongs to Mo Cui specifically, and it comes directly from the optical behavior described above. A stone that is black in daylight and green under light matches the Confucian ideal of 和光同尘、深藏不露 — dimming your brilliance to blend with the ordinary, keeping what you have out of sight. The Chinese trade calls Mo Cui 成功男人的影子石, the successful man's shadow stone, for exactly this reason. It is a modern nickname built on an old idea, and it is the rare case where a symbolic reading follows from something you can verify with a flashlight.
Worth saying clearly: this is a system of correspondences. The correspondence is documented. A claim that a black bracelet will attract money or block adversaries is a modern reading of that system, not a property of the mineral.
One boundary matters. All six ritual jades in the Zhou li were nephrite. Jadeite reached China from Myanmar and became a court material only much later — from the thirteenth century to the early twenty-first, the jadeite sold in China came exclusively from Myanmar. The ancient black-jade tradition is a nephrite tradition, and attaching it wholesale to modern Mo Cui is the most common error in English writing on this subject. The broader symbolism of jade as a material is covered in our guide to jade meaning and symbolism.
Black jade in Tibetan Buddhist practice
Black is associated with wrathful and subduing activity in the Tibetan tradition, and dark stone is used in protector imagery, mala beads and ritual ornament. That is a description of use, and it is accurate. We are not going to translate it into promises about karma, merit or wealth — those are outcomes, and the tradition does not offer them as guarantees.
Does the carving change the meaning?
Yes, and usually more than the color does. The motif carries the specific meaning; the color carries the register.
A dragon traditionally signifies authority, strength and transformation. In our carved dragon bracelet the 24 × 17 × 11 mm head is the subject and the black is the register it is played in. The dragon fang pendant — certified jadeite jade — takes the same motif and reduces it to a single form. A plain barrel bead or a polished link says steadiness through form alone, with no religious reading attached.
Black Jade Benefits: What's Belief and What's Evidence
The word benefit covers three different things, and separating them is what makes this section worth reading.
What holds up. The cultural benefits are real and documented: an inherited system of meaning attached to a durable object, worn daily and passed on. Black's place in that system — north, Water, the Zhou li — is something you can look up.
What is real but not jade-specific. People report that a piece steadies them. That effect is well understood and psychological: an object tied to an intention works as an external cue. Touching a bead before answering a difficult message creates a pause, and the pause is real. A different object would do the same if it carried the same meaning for you. What jade adds is that the meaning is inherited rather than assigned last week.
What has nothing behind it. The medical claims. The most persistent one attached to dark jade runs through the Five Elements: black corresponds to Water, Water corresponds to the kidneys, therefore black jade supports kidney function.
Follow that chain and you can see where it breaks. It is a color correspondence inside a symbolic system, and it was never a claim about a mineral touching skin. The system organizes the world into fives; it does not predict what happens when you wear a bracelet.
A randomised study published in CNS Spectrums in 2025 tested this class of claim directly: 138 adults, sorted by whether they believed in crystal efficacy, given either rose quartz or a visually matched placebo across a standardised fourteen-day protocol. Anxiety reductions appeared only among believers, and appeared regardless of which stone they had received.
That does not make anyone's comfort imaginary. It locates it. We take this apart across all jade in our evidence-graded guide to jade benefits.
On chakras: linking black stones to the root chakra comes from twentieth-century Western crystal literature, which took the chakra system from Indian yogic tradition via nineteenth-century Theosophy. It is a coherent framework and people use it meaningfully. It is not Chinese, not part of the Zhou li scheme above, and worth labelling as what it is.
Jade is not a treatment for any condition. If something is wrong, see a doctor.
Where Does Black Jade Come From?
Burmese black jade — the six Hpakant pits
Myanmar is the source of essentially all gem-grade black jadeite on the international market, from the Hpakant region of Kachin State. The trade divides that region into named chang kou, mine pits, and six recur in black material. These are the characteristics I work with when buying rough:
| Pit | Black material character |
|---|---|
| Mawanji 莫湾基 | The pit most closely tied to fine Mo Cui. Black weathered skin, pure blackness face-up, old texture, fine flesh — the highest hit rate for top-grade Mo Cui |
| Moxisha 莫西沙 | Mostly icy-grade Mo Cui, good blackness and strong optical brightness, but the most variable pit in the rough — cloudiness and texture surprises are common |
| Hui Ka 会卡 | Clean flesh and few fractures, which is why larger plaques and pendants come from here. A white misty skin layer that is easy to misread as poor texture |
| Muna 木那 | Frequently carries snowflake cotton — even white speckling distributed across a dark ground. A distinctive look that carries a collector premium |
| Damakan 大马坎 | Good quality with a strong gel-like character, but more fracturing and a higher chance of texture inconsistency |
| Hou Jiang 后江 | Small blocks, but strong even green under transmission with good color saturation — the source for small cabochons and set pieces |
I use these names the way the trade uses them: as descriptions of a look and a reputation. No standard laboratory report states a mine pit, and most do not state a country. Once a stone has been cut and has circulated, a pit claim is close to unverifiable. Treat it as vocabulary, not provenance.
Guatemalan black jade
The Motagua region is the world's second major jadeite source, and black and blackish-green material from it now reaches the market in volume. It is sometimes sold as Maya black jade, and one distinctive local variety carries metallic-looking inclusions scattered across a dark ground, marketed as Galactic Gold.
A 2026 comparative study in the Journal of Gems & Gemmology examined black jadeite jade from both countries by electron probe microanalysis:
- The Myanmar samples were mainly omphacite — fine-grained, with more uniform particles, appearing dark green under transmitted light
- The Guatemalan samples were mainly jadeite with minor aegirine or augite, sometimes showing graininess visible to the naked eye, uneven particle sizes, and gray-white flocs and dots internally
- Guatemalan bulk samples were generally opaque under transmitted light
- Guatemalan relative density was slightly higher than the Myanmar samples
That matches what I see buying. Guatemalan black material tends toward medium-to-coarse texture, is mostly opaque, carries more internal fracturing, and rarely yields large clean pieces. Where it does transmit, the green reads darker and bluer than Burmese material, with less of the gel-like quality.
On price. In my own buying, comparable-looking Guatemalan black material has run between roughly a third and a tenth of Burmese pricing depending on grade and size. That is a trade observation from my own purchasing, not a published figure. Both materials certify correctly as jadeite jade — neither is fake, and Guatemalan material can be genuinely attractive. They are simply not the same commercial product, and an unusually low quote on described-as-fine black jadeite is worth a question.
Black nephrite sources
| Region | Character |
|---|---|
| Hetian, Xinjiang | Full-black material described as black as lacquer, oily and fine — the densest texture and the best oiliness. The collector benchmark within China |
| Qinghai | Grayer cast, less oily, with transitional smoky and dark-green varieties. High volume, mid-market |
| Russia | High blackness but drier texture and a looser structure. The largest share of circulating volume, and the most accessible in price |
| Guangxi, China | Actinolite or ferro-actinolite dominant; high iron makes normal thickness read black while thin areas show green, yellow or brown |
| Cowell, South Australia | A significant nephrite district; material is commercially described as black Cowell jade |
| Canada, New Zealand | Overwhelmingly green nephrite; black is scarce |
Japan produces jadeite in the Itoigawa–Omi region, including documented graphite-bearing black material, but commercial availability is limited and it is not a source we buy from.
Why origin cannot be read from appearance
A green transmission reaction is consistent with Mo Cui, but similar-looking material comes from more than one country. The 2026 study needed electron probe analysis to separate two deposits, and origin determination for jade remains harder than basic identification. Standard reports confirm species and treatment; most do not attempt origin. Our comparison of Burmese, Guatemalan and Hetian jade covers why the country name should never replace an assessment of the individual stone.
Types and Trade Names of Black Jade
Trade names come from sellers and collectors. They are useful shorthand and they establish nothing on their own.
| Name | What it describes | What it does not establish |
|---|---|---|
| Mo Cui 墨翠 | Omphacite-rich jadeite jade, black face-up, transmitting green | A graded standard, a mine pit, or Burmese origin |
| Black-chicken jadeite 乌鸡种 | Jadeite-rich black or gray-black material that transmits gray, not green | That it is failed Mo Cui — a good carver uses its character deliberately |
| Graphite-bearing black jadeite | Jadeite with graphite as the documented cause of black areas | That it will show green transmission |
| Black nephrite / Mo Yu 墨玉 | Nephrite colored black by graphite | Xinjiang origin — the gem name covers the species, not the source |
| Maya black jade | Guatemalan black jadeite jade | A quality tier |
| Galactic Gold | Guatemalan black material with metallic-looking inclusions | A defined gemmological variety |
If a listing says only "black jade," ask which one. A complete answer names jadeite jade or nephrite and states whether treatment was tested.
Black Jade vs Green Jade
| Black | Green | |
|---|---|---|
| What causes it | No single cause — iron in omphacite, amphibole and magnetite, graphite, or iron-rich actinolite | Chromium in the jadeite structure |
| Five Elements | Water, north | Wood, east |
| How it behaves | Face-up appearance and transmitted color can differ completely | What you see is broadly what it is |
| Market position | A specialist category; fine Mo Cui is scarce but trades in a narrower pool | The main market, with imperial green at the top of all jade |
| Who buys it | Skews strongly male; chosen for restraint | The full range |
The practical difference: with green you can form an opinion from a photograph. With black you cannot, which is why every black listing should show the piece under two lighting conditions. Color by color, our jade colors guide covers the full spectrum.
How to Tell Black Jadeite from Black Nephrite
The reliable answer is a report. These non-destructive observations will usually point the right way.
The flashlight. The fastest single check. Green transmission means jadeite jade — specifically Mo Cui. Gray transmission means jadeite jade too, but black-chicken material. Black or gray-black with no green tone at all is consistent with nephrite. This narrows the field; it does not certify anything.
Luster. Under a single light source, jadeite returns a bright, sharp, slightly glassy highlight. Nephrite returns a softer glow that looks like it sits just under the surface. Side by side you will not confuse them again.
Weight. Jadeite is meaningfully denser at roughly 3.33 against nephrite's 2.95. At the same size, a jadeite bracelet has noticeable heft.
Surface at an angle. On jadeite that is not exceptionally fine, tilting under light can show brief flashes from cleavage planes on the grains — 翠性 in the Chinese trade. Nephrite's felted structure produces nothing comparable.
What not to do. Do not scratch it, strike it for sound, heat it, burn the cord, or judge by whether it feels cold. Destructive home tests damage jewelry and still reach the wrong conclusion. Our explanation of why home tests don't replace lab certification covers what each method can and cannot settle.
Black Jade vs Onyx, Obsidian and Other Lookalikes
Polished black materials converge visually, especially as round beads. This table is here to show how little you can tell by eye, not how much.
| Material | What it is | Common clues | Why the clues aren't enough |
|---|---|---|---|
| Black jadeite jade | Interlocking pyroxene jade | Tough; vitreous polish; Mo Cui transmits green | Black-chicken material transmits gray, so no green does not rule out jadeite |
| Black nephrite | Interlocking tremolite–actinolite jade | Exceptionally tough; greasy luster; no green transmission | Fine polish can look glassy; some jadeite also reads waxy |
| Black onyx | Commercially, black chalcedony — much of it color-treated | Fine, even texture; uniform black | Uniformity does not reveal whether it was dyed |
| Obsidian | Natural volcanic glass | Strong glassy luster; conchoidal chips | Finished beads hide the diagnostic fracture surfaces |
| Serpentine | Softer magnesium silicates | Softer; waxy; dark green to near-black | Feel and temperature are subjective |
| Manufactured glass | Man-made | Bubbles, mould marks, unnaturally even color | Good glass shows none of these |
| Dark rock sold as jade | Basalt, amphibolite, other rock | Visible grains; sometimes magnetic | Some rocks closely resemble recognised gem materials |
Is Black Jade Valuable?
It depends far more on which material it is and whether it has been treated than on how black it looks. Five things move the number, roughly in order:
1. Which material. Mo Cui, black-chicken jadeite and black nephrite trade on three different logics. This is the first question, not a detail.
2. Whether it has been treated. Two bracelets that look identical face-up can differ by an order of magnitude on this factor alone, and nothing about the surface tells you which is which. Black is an easy color to fake convincingly, which raises the stakes here relative to other colors.
3. The quality and evenness of transmitted color. For Mo Cui, a stone that opens to clean even green through usable thickness is a different product from one that shows green only at a thin edge.
4. Where the fractures are. Check the drill holes, the inner curve of a bangle, and anywhere a carving runs thin. Dark color hides fractures in photographs better than any other color.
5. Usable size. Clean black material large enough for a substantial carving, or consistent enough to match across a bead strand, is scarcer than the same material in small pieces.
Current figures by tier and category live in our 2026 jade price guide, which is kept updated. This article stays out of pricing deliberately — establish the material and treatment status first, because without those two a price comparison is not comparing the same thing.
How to Choose Black Jade Jewelry
1. Start with the report, not the trade name. Mo Cui and black-chicken jadeite both appear as jadeite jade or Fei Cui; nephrite is identified separately. Every BMjade piece ships with an independent NGTC report carrying a serial number and a photograph of the actual item — our verification guide shows how to match the online record against what arrives.
2. Understand what Type A covers. In the jadeite trade, Type A means no acid bleaching, no polymer impregnation, no dye; surface waxing after polishing is accepted within it. Type B is bleached and impregnated, Type C is dyed. The A/B/C system belongs to jadeite. Nephrite is correctly described as natural and untreated.
3. Ask for two lighting conditions. Indirect daylight for face-up color, then a controlled flashlight. Does it read black, green-black or mottled gray face-up? Does transmission show green, gray or nothing? Is the reaction even, or only at thin edges? None of this proves identity — it tells you what you are buying.
4. Inspect where dark color hides things. Backs, drill holes, bead openings, carving recesses, pendant edges. For strands, compare drilling quality, polish around the holes, and whether each bead belongs visually with the rest.
5. Judge texture and color distribution. Fine black jadeite takes a crisp polish and shows compact texture. Coarser material reveals grain, cloudy dots or uneven patches. In black-chicken material, variation is often intentional.
6. Match the structure to the wearer. A 180 mm strand of 13.3 mm barrels sits differently from a linked chain. Neither is adjustable in the way an elastic bracelet is.
Browse what we hold in jadeite jewelry or across bracelets and bangles, and see how black fits the broader category in our guide to jade jewelry for men.
Black Jade FAQ
Is black jade real jade?
Yes. Both black jadeite jade — including Mo Cui and black-chicken jadeite — and black nephrite are genuine jade. The complication is that black is also the easiest color to imitate with dyed chalcedony, obsidian, serpentine or glass, so a report matters more here than for most colors.
Is black jade actually green?
Mo Cui is. It reads lacquer black in ordinary light and transmits emerald to dark green under a strong flashlight, because the green is the body color and the black is what thickness does to it. Black-chicken jadeite is not — it transmits gray-white to gray-black. Black nephrite transmits black or gray-black with no green tone at all. A green reaction identifies Mo Cui specifically, not black jade generally.
What is Mo Cui?
The Chinese trade name for omphacite-rich jadeite jade that is black face-up and green under transmitted light. On a report it is identified as jadeite jade or Fei Cui; Mo Cui is a variety name, not a laboratory conclusion.
What is the difference between black jadeite and black nephrite?
Different mineral families. Black jadeite is a pyroxene, denser at roughly 3.33 against nephrite's 2.95, with a brighter vitreous luster, and it transmits green as Mo Cui or gray as black-chicken material. Black nephrite is a tremolite–actinolite amphibole colored by graphite, with a softer greasy luster, transmitting black or gray-black and never green.
Is black jade valuable?
It depends on which material it is and whether it has been treated far more than on how black it looks. Fine Mo Cui with even green transmission through usable thickness sits well up the jadeite scale. Coarse opaque material with fractures does not. Treatment status alone can separate two identical-looking pieces by an order of magnitude, which is why an untested black piece is difficult to value at all.
How much is black jade worth?
There is no single per-carat answer, and any source giving one is oversimplifying — finished jade is valued as a whole piece because material, size, carving and construction interact. Establish material and treatment status first. Our jade price guide carries current figures by tier.
Is black jade the same as onyx or obsidian?
No. Black onyx is commercially black chalcedony and much of it is color-treated. Obsidian is natural volcanic glass. Neither is jade. Both polish into black beads that resemble black jade closely enough that visual separation is unreliable.
Where does black jade come from?
Black jadeite comes principally from Myanmar's Hpakant region, with Guatemala's Motagua region the second major source and documented graphite-bearing material in Japan. Black nephrite comes from Xinjiang, Qinghai, Russia, Guangxi and Cowell in South Australia, among others. Appearance does not establish origin, and most identification reports do not state a country.
Final Thought
Black is the color that punishes buying from photographs. A green bangle photographs more or less as it is. A black one shows you almost nothing — not its transmitted color, not its texture, not its fractures, sometimes not even which mineral family it belongs to. One flashlight and one honest seller settle most of it in about ten seconds.
If you have a black piece and want to know which material you're holding, send me a photograph at jadeworldchina@outlook.com. — Hong
References
- Tian J., Qu G., Pei X., Cai Y., Gao Y., Chen T. (2026). A Comparative Study on Black Feicui (Omphacite Jade) from Myanmar and Black Feicui (Jadeite Jade) from Guatemala. Journal of Gems & Gemmology, 28(2), 20–31.
- Huang Z., Chen T., Zheng J., Xu Z. (2024). "Ice Jade" from Guatemala. Gems & Gemology, 60(1), 26–41.
- Abduriyim A., Saruwatari K., Katsurada Y. (2017). Japanese Jadeite. Gems & Gemology, 53(1), 48–67.
- Hughes R.W. et al. (2000). Burmese Jade: The Inscrutable Gem. Gems & Gemology, 36(1), 2–26.
- Zheng B. et al. (2022). Gemological Characteristics and Chemical Composition of a New Type of Black Jadeite and Three Imitations. Crystals, 12(5), 658.
- Morimoto N. (1989). Nomenclature of Pyroxenes. Mineralogical Journal, 14(5), 198–221.
- Yin Z. et al. (2014). Nephrite Jade from Guangxi Province, China. Gems & Gemology, 50(3).
- Government of South Australia, Department for Energy and Mining. Nephrite Jade.
- Zhou li, "Da Zong Bo" (周禮·春官·大宗伯) — the six ritual jades and their directions. Chinese Text Project.
- Rawson, J. (1995). Chinese Jade from the Neolithic to the Qing. British Museum Press.
- Escolà-Gascón Á. et al. (2025). Placebo effects in alternative medical treatments for anxiety. CNS Spectrums, 30(1), e70.
