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Supplementary name index

Names found in authoritative sources that have no entry on this site, each with its checked source, a short note and a link to related entries.

Authority name index: names without their own entry

These names appear in the authority documents this site cites, but LumaLark has not given them an entry of their own. Each one lists the source, clause and page it was checked against, a one-line note in LumaLark’s words and, where there is one, the entry that covers it.

The Chinese names appear on the Chinese version of this page.

A Chinese name marked unverified was not found in GB/T 16552—2017 Annex A, GB/T 16553—2017 or the Annex A tables of the GB/T 16552 revision draft, and the mineral-name database pages that might settle it could not be reached; the name shown there is LumaLark’s working rendering, or none is given yet.

  • Anatase Chinese name: LumaLark working rendering, unverified

    A titanium dioxide mineral with the same composition as rutile (see the Rutile entry) but a different mineral; the CIBJO laboratories book records it as mostly brown or blue and transparent, and seldom cut as a gem.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.14 “Anatase”, p.76; CIBJO Gemstone Book 2022: §8 Annex C, row “Anatase”, p.33; IMA Mineral List 2026-07: row “Anatase”, p.10

    Related entries: Rutile

  • Beryllonite Chinese name: LumaLark working rendering, unverified

    A sodium beryllium phosphate (IMA list formula NaBe(PO4)); the CIBJO laboratories book gives colourless to pale yellow and transparent, and Gemstone Book Annex C says it is commonly untreated. No closely related entry on this site.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.28 “Beryllonite”, p.82; CIBJO Gemstone Book 2022: §8 Annex C, row “Beryllonite”, p.37; IMA Mineral List 2026-07: row “Beryllonite”, p.25

  • Blue quartz Chinese name: a standard base name plus a qualifier added by LumaLark

    Quartz coloured blue by dumortierite inclusions: the Annex C row says in its material column that the colour comes from dumortierite inclusions, and the laboratories book has a separate Dumortierite quartz entry. Parent entry: Quartz; the colouring inclusion is covered under Dumortierite.

    Basis for the Chinese name: The mineral name (quartz) is the one in GB/T 16552—2017 Table A.1; the colour word is added by this site, and the standard does not list the combined name.

    Sources: CIBJO Gemstone Book 2022: §8 Annex C, row “Blue Quartz, or Dumortierite Quartz”, p.69; CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.79 “Dumortierite quartz”, p.102

    Parent entry: Quartz; Related entries: Dumortierite

  • Cerussite Chinese name: LumaLark working rendering, unverified

    A lead carbonate (IMA list formula Pb(CO3)) ranging in colour from white and grey to blue-green; Gemstone Book Annex C says it is almost always untreated and assigns special-care codes a, h and j.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.44 “Cerussite”, p.88; CIBJO Gemstone Book 2022: §8 Annex C, row “Cerussite”, p.38; IMA Mineral List 2026-07: row “Cerussite”, p.39

  • Chondrodite Chinese name: LumaLark working rendering, unverified

    A fluorine-bearing magnesium silicate (IMA list formula Mg5(SiO4)2F2), brownish yellow to brownish red per the CIBJO laboratories book; the Annex C treatment column reads usually untreated.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.50 “Chondrodite”, p.90; CIBJO Gemstone Book 2022: §8 Annex C, row “Chondrodite”, p.38; IMA Mineral List 2026-07: row “Chondrodite”, p.44

  • Clinohumite Chinese name: LumaLark working rendering, unverified

    A magnesium silicate close in make-up to chondrodite (IMA list formula Mg9(SiO4)4F2), yellow through yellow-brown to red-brown per the laboratories book; Gemstone Book Annex C has no row for it.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.61 “Clinohumite”, p.95; IMA Mineral List 2026-07: row “Clinohumite”, p.47

  • Ekanite Chinese name: none given yet, unverified

    A thorium-bearing calcium silicate (IMA list formula Ca2ThSi8O20); the laboratories book warns that it may have relatively high natural radioactivity and can show chatoyancy or asterism, and the Annex C care column simply reads “Naturally radioactive”.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.80 “Ekanite”, p.102; CIBJO Gemstone Book 2022: §8 Annex C, row “Ekanite”, p.51; IMA Mineral List 2026-07: row “Ekanite”, p.62

  • Gahnite Chinese name: LumaLark working rendering, unverified

    The zinc aluminium oxide of the spinel group, black and only rarely green or blue per the laboratories book; Annex C has one row pointing to “See Spinel” and a separate row among the spinels. Its parent entry is Spinel.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.92 “Gahnite”, p.107; CIBJO Gemstone Book 2022: §8 Annex C, row “Gahnite”, p.54; CIBJO Gemstone Book 2022: §8 Annex C, row “Gahnite”, p.77; IMA Mineral List 2026-07: row “Gahnite”, p.79

    Parent entry: Spinel

  • Hibonite Chinese name: LumaLark working rendering, unverified

    A calcium aluminium oxide, brownish black to black and reddish brown in thin fragments per the laboratories book. The two originals disagree on IMA status: G in the laboratories book table, Rd in the July 2026 IMA list; both are shown as recorded.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.109 “Hibonite”, p.114; CIBJO Gemstone Book 2022: §8 Annex C, row “Hibonite”, p.56; IMA Mineral List 2026-07: row “Hibonite”, p.93

  • Iris agate Chinese name: LumaLark working rendering, unverified

    Translucent agate that shows iridescent, rainbow-like colours; the laboratories book mentions it inside the agate definition, and Annex C gives it its own row, commonly untreated. Its parent entry is Agate.

    Basis for the Chinese name: Neither GB/T 16552—2017 Table A.2 nor GB/T 34098—2017 lists this name; the Chinese rendering of “iris” (iridescence) is this site’s own and remains to be verified.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.3 “Agate”, p.71; CIBJO Gemstone Book 2022: §8 Annex C, row “Iris Agate”, p.72

    Parent entry: Agate

  • Jeremejevite Chinese name: LumaLark working rendering, unverified

    A fluorine-bearing aluminium borate (IMA list formula Al6(BO3)5F3), blue, violet, colourless or yellow and transparent per the laboratories book; Annex C lists it as always untreated.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.120 “Jeremejevite”, p.118; CIBJO Gemstone Book 2022: §8 Annex C, row “Jeremejevite”, p.59; IMA Mineral List 2026-07: row “Jeremejevite”, p.105

  • Johachidolite Chinese name: LumaLark working rendering, unverified

    A calcium aluminium borate (IMA list formula CaAlB3O7, type locality given as North Korea), yellow and ranging from transparent to opaque per the laboratories book.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.121 “Johachidolite”, p.118; CIBJO Gemstone Book 2022: §8 Annex C, row “Johachidolite”, p.60; IMA Mineral List 2026-07: row “Johachidolite”, p.105

  • Lace coral Chinese name: LumaLark working rendering, unverified

    A common coral of the Stylasteridae family that looks like pink to red precious coral but has an aragonite skeleton and is often dyed and impregnated to imitate it; the CIBJO coral book notes the family has been in CITES Appendix II since 1990. Parent entry: Coral; the material it imitates is Precious coral.

    Basis for the Chinese name: The Chinese name follows the rendering already used for CIBJO Coral Book §5.56 on this site’s Coral entry; GB/T 16552—2017 Table A.3 does not list it, so it is unverified.

    Sources: CIBJO Coral Blue Book 2024: §5.56 “Lace coral”, p.16; CIBJO Coral Blue Book 2024: §7.9.6 “Lace coral”, p.29

    Parent entry: Coral; Related entries: Precious Coral

  • Londonite Chinese name: none given yet, unverified

    A caesium beryllium aluminium borate forming a series with rhodizite — both Annex C rows say “Londonite-Rhodizite series”; the laboratories book gives vivid to pale yellow, pale yellow-green, colourless or white.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.134 “Londonite”, p.124; CIBJO Gemstone Book 2022: §8 Annex C, row “Londonite”, p.60; IMA Mineral List 2026-07: row “Londonite”, p.127

  • Mahogany Obsidian Chinese name: LumaLark working rendering, unverified

    Obsidian mottled in reddish brown and black, named for its mahogany-like colour; Annex C lists it on its own row under obsidian as always untreated. Its parent entry is Obsidian.

    Basis for the Chinese name: GB/T 16552—2017 Table A.2 uses a different standard name for obsidian from the one this site’s entry uses; the Chinese rendering of “mahogany” is a literal translation by this site, not listed in the standard, and is unverified.

    Sources: CIBJO Gemstone Book 2022: §8 Annex C, row “Mahogany Obsidian”, p.61

    Parent entry: Obsidian

  • Odontolite Chinese name: none given yet, unverified

    Not a mineral species: the laboratories book describes it as fossil bone or teeth made of light blue microcrystalline fluorapatite, and Annex C places it with ivory, its cells reading “See ivory”. Related entries: Apatite and Ivory.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.157 “Odontolite”, p.133; CIBJO Gemstone Book 2022: §8 Annex C, row “Odontolite”, p.58

    Related entries: Apatite; Ivory

  • Petalite Chinese name: LumaLark working rendering, unverified

    A lithium aluminium silicate (IMA list formula LiAlSi4O10), colourless or grey and occasionally yellow, pink or very light green per the laboratories book, sometimes chatoyant.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.174 “Petalite”, p.140; CIBJO Gemstone Book 2022: §8 Annex C, row “Petalite”, p.67; IMA Mineral List 2026-07: row “Petalite”, p.170

  • Pezzottaite Chinese name: none given yet, unverified

    A caesium-bearing beryllium lithium aluminium silicate, pink to purplish red per the laboratories book. Spellings differ: the IMA list now records Pezzottaite-(Cs), the laboratories book species field spells it pezzotaite, and Annex C adds a separate “Pezzottaite Cat’s eye” row.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.176 “Pezzottaite”, p.141; CIBJO Gemstone Book 2022: §8 Annex C, row “Pezzottaite”, p.67; IMA Mineral List 2026-07: row “Pezzottaite-(Cs)”, p.170

  • Pink topaz Chinese name: a standard base name plus a qualifier added by LumaLark

    A variety name listed under natural topaz in the JJA/AGL nomenclature table, with orange-pink and pink in the colour column and heating in the treatment column. Its parent entry is Topaz.

    Basis for the Chinese name: The base name (topaz) is the one in GB/T 16552—2017 Table A.1; the colour word is added by this site, and the standard does not list the combined name.

    Sources: JJA/AGL Gemstone Nomenclature 2025: row “Pink Topaz”, p.14

    Parent entry: Topaz

  • Plagioclase Chinese name: as printed in the cited standard

    The sodium–calcium series of feldspars; GB/T 16553 gives its composition under the feldspar clause, and GB/T 16552 Table A.2 names it as one of the main minerals of Dushan jade. No separate entry here: see Feldspar.

    Basis for the Chinese name: The Chinese name is the wording of the feldspar clause (material properties) of GB/T 16553—2017 and of the Dushan jade row in GB/T 16552—2017 Table A.2 (see the sources below); the English name is taken from the same place in the official English version of GB/T 16553—2017.

    Sources: GB/T 16553—2017 Gems — Testing: §5.1.17.3, p.30; GB/T 16552—2017: Table A.2, p.11; GB/T 16553—2017 Gems — Testing: §5.2.8.2, p.56

    Parent entry: Feldspar; Related entries: Dushan Yu / Dushan Jade

  • Pollucite Chinese name: LumaLark working rendering, unverified

    A caesium aluminium silicate (IMA list formula Cs(Si2Al)O6·nH2O), colourless, pale blue and violet, grey or white per the laboratories book, transparent to opaque.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.180 “Pollucite”, p.143; CIBJO Gemstone Book 2022: §8 Annex C, row “Pollucite”, p.67; IMA Mineral List 2026-07: row “Pollucite”, p.175

  • Potassium feldspar Chinese name: as printed in the cited standard

    The potassium-dominant feldspars (KAlSi3O8, possibly with barium, sodium, rubidium or strontium), set beside plagioclase in the GB/T 16553 feldspar clause; often shortened to K-feldspar. No separate entry here: see Feldspar.

    Basis for the Chinese name: The Chinese name is the wording of the feldspar clause (material properties) of GB/T 16553—2017 (see the source below); the English name is the one used in the same place of that standard’s official English version.

    Sources: GB/T 16553—2017 Gems — Testing: §5.1.17.3, p.30

    Parent entry: Feldspar

  • Purpurite Chinese name: LumaLark working rendering, unverified

    A manganese phosphate (IMA list formula Mn3+(PO4)), purple to pink or dark brown and translucent per the laboratories book; the Annex C care column reads N/A.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.186 “Purpurite”, p.145; CIBJO Gemstone Book 2022: §8 Annex C, row “Purpurite”, p.67; IMA Mineral List 2026-07: row “Purpurite”, p.179

  • Rhodizite Chinese name: none given yet, unverified

    A potassium beryllium aluminium borate in a series with londonite (as both the laboratories book and Annex C state), colourless, pink or yellow-green and transparent.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.194 “Rhodizite”, p.148; CIBJO Gemstone Book 2022: §8 Annex C, row “Rhodizite”, p.73; IMA Mineral List 2026-07: row “Rhodizite”, p.185

  • Sapphirine Chinese name: found only in a draft standard (not in force)

    A magnesium aluminium silicate whose name contains “sapphire” although it is not corundum; the laboratories book gives dark blue, blue-grey, greenish grey to green, rarely yellow-brown or pink.

    Basis for the Chinese name: The Chinese name appears only in the GB/T 16552 revision draft for comment (not in force), Annex A Table A.1, in the row giving the base name, English name and mineral name; the current GB/T 16552—2017 Annex A has no such row.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.205 “Sapphirine”, p.153; CIBJO Gemstone Book 2022: §8 Annex C, row “Sapphirine”, p.74; IMA Mineral List 2026-07: row “Sapphirine”, p.191

  • Seed pearl Chinese name: as printed in the cited industry-body document (not a national standard)

    A very small natural pearl. CIBJO Pearl Book §5.179 defines it as a saltwater or freshwater natural pearl generally under two millimetres and never over three millimetres; US 16 CFR §23.19(d) says a small pearl of about two millimetres or less — the two differ and are shown side by side. Parent entry: Natural pearl. Not interchangeable with “seed bead”: that is a bead form (shape plus size, with the material stated separately, such as glass or pearl seed beads), whereas this is a category of natural pearl defined by origin.

    Basis for the Chinese name: The Chinese name is the heading term of clause Ⅱ-1-2 (p.4) in the official Chinese version of the Japan Pearl Promotion Society’s Pearl Quality Standard (2014 edition); the same clause bars using it for small beads other than natural pearls, and note 5 (p.11) records that CIBJO likewise reserves the term for natural pearls. The Society is a trade body of Japanese pearl farmers, processors, exporters and retailers (a general incorporated association that Japan’s Ministry of Agriculture, Forestry and Fisheries recognises as the export-promotion body for pearls), so this is an industry self-regulatory standard, not a government or national standard. GB/T 16552—2017, GB/T 18781—2023 and GB/T 16553—2017 do not contain the term.

    Sources: CIBJO Pearl Book 2024: §5.179 “Seed pearl”, p.43; 16 CFR Part 23: §23.19(d) “Seed pearl”; Japan Pearl Promotion Society, Pearl Quality Standard (2014 edition), official Chinese version: §Ⅱ-1-2, p.4

    Parent entry: Natural Pearl; Related entries: Seed Bead / Small Bead

  • Serendibite Chinese name: LumaLark working rendering, unverified

    A calcium magnesium aluminium borosilicate (type locality Sri Lanka in the IMA list), bluish green to green-blue and transparent per the laboratories book; Annex C lists it as always untreated.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.212 “Serendibite”, p.156; CIBJO Gemstone Book 2022: §8 Annex C, row “Serendibite”, p.74; IMA Mineral List 2026-07: row “Serendibite”, p.197

  • Tantalite-(Mn) Chinese name: LumaLark working rendering, unverified

    A manganese tantalum oxide (IMA list formula Mn2+Ta2O6); the laboratories book notes the older name mangano-tantalite, the Annex C nomenclature cell reads Manganotantalite, and the colour is vivid to dark red, transparent.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.235 “Tantalite-(Mn)”, p.165; CIBJO Gemstone Book 2022: §8 Annex C, row “Tantalite-(Mn)”, p.79; IMA Mineral List 2026-07: row “Tantalite-(Mn)”, p.212

  • Thomsonite Chinese name: LumaLark working rendering, unverified

    A zeolite whose radiating fibrous structure and colour patterns give it an agate-like look; the laboratories book species field reads thomsonite-(Ca) and the IMA list writes Thomsonite-Ca, both kept as printed.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.238 “Thomsonite”, p.166; CIBJO Gemstone Book 2022: §8 Annex C, row “Thomsonite”, p.79; IMA Mineral List 2026-07: row “Thomsonite-Ca”, p.216

  • Tugtupite Chinese name: LumaLark working rendering, unverified

    A chlorine-bearing sodium beryllium aluminium silicate, usually pink to red and often mottled with white, grey or black, and translucent to opaque, per the laboratories book; Annex C gives special-care code j.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.248 “Tugtupite”, p.170; CIBJO Gemstone Book 2022: §8 Annex C, row “Tugtupite”, p.85; IMA Mineral List 2026-07: row “Tugtupite”, p.222

  • Verdite Chinese name: none given yet, unverified

    Not a mineral species: a green, opaque ornamental stone that the laboratories book says consists mainly of fuchsite with minor albite, chlorite, corundum and other minerals; Annex C lists it as always untreated. Fuchsite is chromium-bearing muscovite, so the related entry is Muscovite.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.258 “Verdite”, p.174; CIBJO Gemstone Book 2022: §8 Annex C, row “Verdite”, p.86

    Related entries: Muscovite

  • Anyolite Chinese name: none given yet, unverified

    It is a rock of green zoisite with embedded red corundum crystals rather than a single mineral species; CIBJO Annex C lists it as a separate row under zoisite, with the treatment column reading always untreated. The Chinese trade nickname for it is not found in any Chinese standard this site cites, so it is not used as a Chinese name. Parent entry: Zoisite; for the red crystals see Ruby.

    Sources: CIBJO Gemstone Book 2022: §8 Annex C, row “Anyolite”, p.88

    Parent entry: Zoisite; Related entries: Ruby

  • Ulexite Chinese name: LumaLark working rendering, unverified

    A hydrated sodium calcium borate (IMA list formula NaCaB5O6(OH)6(H2O)5); the laboratories book gives white, transparent to translucent, its testing protocol lists cat’s-eye as the phenomenon to check and warns that it is very soft, and Annex C lists it as always untreated. Its parallel fibres carry an image from one face to the other, which is why it is nicknamed “TV stone” in the Chinese market — a market nickname with no standard source, not used as its Chinese name.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.250 “Ulexite”, p.171; CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §6.1.89 “Ulexite”, p.53; CIBJO Gemstone Book 2022: §8 Annex C, row “Ulexite”, p.86; IMA Mineral List 2026-07: row “Ulexite”, p.223

  • Marcasite Chinese name: LumaLark working rendering, unverified

    An iron sulphide with the same composition as pyrite (IMA list formula FeS2) but a different crystal structure. The laboratories book gives bronze, light brass-yellow to tin-white, metallic lustre, opaque, and notes that it is unstable and brittle; faceted “marcasite” in jewellery is usually pyrite, a misuse of the mineral name. Related entry: Pyrite.

    Basis for the Chinese name: The Chinese name matches the rendering already used in the CIBJO laboratory-protocol fact on this site’s Pyrite entry; the Chinese standards this site cites do not list this mineral, so it is unverified.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.142 “Marcasite”, p.127; IMA Mineral List 2026-07: row “Marcasite”, p.135

    Related entries: Pyrite

  • Painite Chinese name: LumaLark working rendering, unverified

    A calcium zirconium aluminium borate (IMA list formula CaZrAl9O15(BO3)) whose type locality in the IMA list is Myanmar; the laboratories book gives deep brownish red and transparent, and Annex C lists it as always untreated. No closely related entry on this site.

    Basis for the Chinese name: The Chinese name follows Chinese gemmological journal usage: a 2021 paper in the Journal of Gems and Gemmology (no. 3) on the gemmological characteristics of painite uses it in its title. An earlier candidate rendering with the elements in a different order had no source and is not used. The Chinese standards this site cites do not list the mineral, so it is unverified.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.170 “Painite”, p.139; CIBJO Gemstone Book 2022: §8 Annex C, row “Painite”, p.67; IMA Mineral List 2026-07: row “Painite”, p.163

  • Grandidierite Chinese name: LumaLark working rendering, unverified

    A magnesium aluminium borosilicate (IMA list formula MgAl3O2(BO3)(SiO4)); the laboratories book gives bluish green or blue, transparent to translucent, and Annex C lists it as always untreated. No closely related entry on this site.

    Basis for the Chinese name: The Chinese name is the one paired with “Grandidierite” in a 2021 paper by Ren Liudong et al. in Acta Petrologica Sinica (vol. 37, no. 2) on the borosilicate assemblage of the Larsemann Hills, East Antarctica. An earlier candidate rendering had no source and is not used. The Chinese standards this site cites do not list the mineral, so it is unverified.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.98 “Grandidierite”, p.109; CIBJO Gemstone Book 2022: §8 Annex C, row “Grandidierite”, p.55; IMA Mineral List 2026-07: row “Grandidierite”, p.85

  • Dravite Chinese name: LumaLark working rendering, unverified

    The sodium–magnesium species of the tourmaline group (IMA list formula NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)); the laboratories book gives yellow to brown, transparent to opaque. The IMA list also has similarly named species such as Fluor-dravite and Oxy-dravite. Parent entry: Tourmaline; the chromium-bearing neighbour (chromium-dravite) is covered under Chrome tourmaline.

    Basis for the Chinese name: The Chinese name is the one paired with “dravite” in a 2021 paper by Ren Liudong et al. in Acta Petrologica Sinica (vol. 37, no. 2) on the borosilicate assemblage of the Larsemann Hills, East Antarctica. GB/T 16553—2017 names only the tourmaline mineral group in its tourmaline clause, not the species; the Chinese standards this site cites do not list this species name, so it is unverified.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.77 “Dravite”, p.101; IMA Mineral List 2026-07: row “Dravite”, p.59

    Parent entry: Tourmaline; Related entries: Chrome Tourmaline

  • Liddicoatite Chinese name: LumaLark working rendering, unverified

    A calcium–lithium tourmaline species name whose meaning differs between sources: the CIBJO laboratories book (2024) says it was redefined as fluor-liddicoatite (IMA status Rd), while the IMA list (2026-07) has both Fluor-liddicoatite (Rd) and a hydroxyl species Liddicoatite approved in 2025 (2025-047), so the same name now denotes another species; both are shown as printed. Annex C has three rows: untreated, oils or wax in fissures, and resins in fissures. Parent entry: Tourmaline.

    Basis for the Chinese name: The Chinese name is this site’s working rendering from the composition (calcium, lithium); since the species the English name denotes has changed (see the note), which species the Chinese name should follow is also unverified. The Chinese standards this site cites do not list it.

    Sources: CIBJO Blue Book — Gemmological Laboratories Book (Gemmological Commission 2024-1): §7.2.1.132 “Liddicoatite”, p.123; CIBJO Gemstone Book 2022: §8 Annex C, row “Liddicoatite”, p.85; IMA Mineral List 2026-07: row “Liddicoatite”, p.125; IMA Mineral List 2026-07: row “Fluor-liddicoatite”, p.75

    Parent entry: Tourmaline

  • Peristerite Chinese name: LumaLark working rendering, unverified

    Not a single mineral species: two sodium-rich plagioclase compositions intergrown in very fine lamellae, which give it a bluish-white sheen. The JJA/AGL nomenclature table lists it on its own row under natural feldspar, white in the colour column, peristerism in the effect column, also called Albite Moonstone. Parent entry: Feldspar; related: Moonstone and Albite.

    Sources: JJA/AGL Gemstone Nomenclature 2025: row “Peristerite”, p.15

    Parent entry: Feldspar; Related entries: Albite; Moonstone