Jadeite Mineral Data + 
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Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows
- 65.1.3c.1 Jadeite Na(Al,Fe)Si2O6 C 2/c 2/m
- 65.1.3c.2 Aegirine NaFeSi2O6 C 2/c 2/m
- 65.1.3c.3 Namansilite NaMn(Si2O6) C 2/c 2/m
- 65.1.3c.4 Kosmochlor NaCrSi2O6 C 2/c 2/m
- 65.1.3c.5 Natalyite Na(V,Cr)Si2O6 C 2/c 2/m
- 65.1.3c.6 Jervisite (Na,Ca,Fe)(Sc,Mg,Fe)Si2O6 C 2/c 2/m
- VIII/F.01-10 Clinoenstatite Mg2Si2O6 P 21/c 2/m
- VIII/F.01-20 Clinoferrosilite (Fe,Mg)2Si2O6 P 21/c 2/m
- VIII/F.01-30 Kanoite (Mn,Mg)2Si2O6 P 21/c 2/m
- VIII/F.01-40 Pigeonite (Mg,Fe,Ca)(Mg,Fe)Si2O6 P 21/c 2/m
- VIII/F.01-50 Diopside CaMgSi2O6 C 2/c 2/m
- VIII/F.01-60 Hedenbergite CaFeSi2O6 C 2/c 2/m
- VIII/F.01-70 Johannsenite CaMnSi2O6 C 2/c 2/m
- VIII/F.01-80 Petedunnite Ca(Zn,Mn,Fe,Mg)Si2O6 C 2/c 2/m
- VIII/F.01-90 Augite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 C 2/c 2/m
- VIII/F.01-100 Omphacite (Ca,Na)(Mg,Fe,Al)Si2O6 P 2/n 2/m
- VIII/F.01-110 Esseneite CaFeAlSiO6 C 2/c 2/m
- VIII/F.01-120 Spodumene LiAlSi2O6 C 2/c 2/m
- VIII/F.01-130 Jadeite Na(Al,Fe)Si2O6 C 2/c 2/m
- VIII/F.01-140 Aegirine NaFeSi2O6 C 2/c 2/m
- VIII/F.01-145 Namansilite NaMn(Si2O6) C 2/c 2/m
- VIII/F.01-150 Jervisite (Na,Ca,Fe)(Sc,Mg,Fe)Si2O6 C 2/c 2/m
- VIII/F.01-160 Natalyite Na(V,Cr)Si2O6 C 2/c 2/m
- VIII/F.01-170 Kosmochlor NaCrSi2O6 C 2/c 2/m
General Jadeite Information |
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 Chemical Formula: |
Na(Al,Fe+++)Si2O6 | ||
| Composition: |
Molecular Weight = 205.03 gm | ||
| Sodium 11.21 % Na 15.11 % Na2O | |||
| Aluminum 11.84 % Al 22.38 % Al2O3 | |||
| Iron 2.72 % Fe 3.89 % Fe2O3 | |||
| Silicon 27.40 % Si 58.61 % SiO2 | |||
| Oxygen 46.82 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
NaAl0.9Fe3+0.1(Si2O6) | ||
| Environment: |
Strongly metamorphosed sodium-rich serpentinous rocks | ||
| IMA Status: |
Valid Species (Pre-IMA) 1863 | ||
| Locality: |
Clear Creek, San Benito County, California. Near Tawmaw and Hpakan villages, Upper Burma. Link to MinDat.org Location Data. | ||
| Name Origin: |
From the Spanish, piedra de ijada, "stone of the side," because its supposed to cure kidney ailments if applied to the side of the body. | ||
| Synonym: |
ICSD 10232 | ||
| PDF 22-1338 | |||
Jadeite Image | |||
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Images:
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Images:
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Jadeite Crystallography |
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| Axial Ratios: |
a:b:c =1.0999:1:0.6095 | ||
| Cell Dimensions: |
a = 9.418, b = 8.562, c = 5.219, Z = 4; beta = 107.56° V = 401.23 Den(Calc)= 3.39 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.83(1), 2.42(0.9), 2.92(0.8), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Jadeite |
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| Cleavage: |
[110] Good | ||
| Color: |
Green, White, Pale bluish gray, Grayish green, Pale purple. | ||
| Density: |
3.25 - 3.35, Average = 3.3 | ||
| Diaphaniety: |
Translucent to subtranslucent | ||
| Fracture: |
Tough - Difficult to break apart as shown by fibrous minerals and most metals. | ||
| Habit: |
Fibrous - Crystals made up of fibers. | ||
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. | ||
| Habit: |
Massive - Fibrous - Distinctly fibrous fine-grained forms. | ||
| Hardness: |
6.5 - Pyrite | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Jadeite |
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| Gladstone-Dale: |
CI meas= 0.028 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.054 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1979,KPDmeas= 0.2033,KC= 0.2092 |
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| Optical Data: |
Biaxial (+), a=1.654-1.673, b=1.659-1.679, g=1.667-1.693, bire=0.0130-0.0200, 2V(Calc)=68-78, 2V(Meas)=70-80. Dispersion r < v. | ||
| Pleochroism (x): |
colorless or green. | ||
| Pleochroism (y): |
colorless or yellowish green. | ||
| Pleochroism (z): |
colorless or yellow. | ||
Calculated Properties of Jadeite |
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| Electron Density: |
relectron=3.26 gm/cc |
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| Fermion Index |
Fermion Index = 0.01359 Boson Index = 0.98641 |
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| Photoelectric: |
PEJadeite = 2.38 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Jadeite is Not Radioactive |
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Jadeite Classification |
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| Dana Class: |
65.1.3c.1 (65)Inosilicate Single-Width Unbranched Chains, W=1 | ||
| (65.1)with chains P=2 | |||
| (65.1.3c)C2/c clinopyroxenes (Na clinopyroxenes) | |||
| Strunz Class: |
VIII/F.01-130 VIII - Silicates | ||
| VIII/F - Inosilicates (chain and band) double chains [Si2O6]4- | |||
| VIII/F.01 - Pyroxene group, Clinopyroxene | |||
Other Jadeite Information |
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| References: |
NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65) | ||
| See Also: |
Links to other databases for Jadeite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - CalTech Mineral Spectroscopy 6 - EUROmin Project 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (MinSocAm) 10 -Handbook of Mineralogy (UofA) 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 - Mineral and Gemstone Kingdom 15 -Mineralienatlas (Deutsch) 16 -NSDL Reciprocal Net (JAVA) 17 -QUT Mineral Atlas 18 - Tradeshop.com - The Rainbow of Gems 19 - UCLA - Petrography Thin-Sections 20 -University of Texas at Austin 21 - WWW-MINCRYST 22 -École des Mines de Paris Search for Jadeite using: Visit our Advertisers for Jadeite : Translate Jadeite Mineral Data : Ask about Jadeite here : Print or Cut-and-Paste your Jadeite Specimen Label here :
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