General Chaidamuite Information![]() (Zn,Fe++)Fe+++(SO4)2(OH)•4(H2O) |
![]() Molecular Weight = 402.43 gm |
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Zinc 16.25 % Zn 20.22 % ZnO |
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Iron 13.88 % Fe 19.84 % Fe2O3 |
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Hydrogen 2.25 % H 20.14 % H2O |
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Sulfur 15.94 % S 39.79 % SO3 |
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Oxygen 51.68 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() ZnFe3+(SO4)2(OH)•4(H2O) |
![]() Secondary mineral. |
![]() Approved IMA 1986 |
![]() Xitieshan Pb-Zn mine, Chaidamu (Qaidam) basin, Qinghai, China. Link to MinDat.org Location Data. |
![]() Named for the locality. |
| | Chaidamuite Image
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Chaidamuite Crystallography![]() a:b:c =1.0148:1:1.3455 |
![]() a = 7.309, b = 7.202, c = 9.691, Z = 2; alpha = 89.643°, beta = 105.89°, gamma = 91.11° V = 490.53 Den(Calc)= 2.72 |
![]() Triclinic - PedialH-M Symbol (1) Space Group: P1 |
![]() By Intensity(I/Io): 3.118(1), 3.09(0.95), 9.4(0.8), |
| Physical Properties of Chaidamuite![]() {001} Perfect, {100} Perfect |
![]() Brown, Yellowish brown. |
![]() 2.722 |
![]() Translucent |
![]() Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
![]() Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
![]() Tabular - Form dimensions are thin in one direction. |
![]() 2.5-3 - Finger Nail-Calcite |
![]() Non-fluorescent. |
![]() Vitreous (Glassy) |
![]() light yellow |
| Optical Properties of Chaidamuite![]() CI meas= -0.028 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.029 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2402,KPDmeas= 0.24,KC= 0.2334 Ncalc = 1.63 - 1.64 ![]() Biaxial (+), a=1.632, b=1.64, g=1.688, bire=0.0560, 2V(Calc)=46, 2V(Meas)=44. |
![]() colorless or light yellow. |
![]() light yellow or light yellow. |
![]() brownish yellow or brownish yellow. |
| Calculated Properties of Chaidamuite![]() Bulk Density (Electron Density)=2.72 gm/cc |
note: Specific Gravity of Chaidamuite =2.72 gm/cc. ![]() Fermion Index = 0.01 |
Boson Index = 0.99 ![]() PEChaidamuite = 12.86 barns/electron |
U=PEChaidamuite x rElectron Density= 34.96 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Chaidamuite is Not Radioactive | Chaidamuite Classification![]() 31.09.07.02 (31)Hydrated Sulfates Containing Hydroxyl or Halogen |
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(31.09)where (A+ B++) (XO4) Zq·x(H2O) |
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(31.09.07)Dana Group |
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![]() 07.DC.30 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DC -With only medium-sized cations; chains of corner-sharing octahedra |
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| Other Chaidamuite Information![]() NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.73,p1493,1988) OPTIC PROP.(Am.Min.,Vol.73,p1493,1988) |
![]() Links to other databases for Chaidamuite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Chaidamuite using: Visit our Advertisers for Chaidamuite : A Bijoux Google Search for ChaidamuiteAdam's Minerals Google Search for Chaidamuite Cape Minerals Google Search for Chaidamuite Dakota Matrix Minerals Google Search for Chaidamuite Excalibur Mineral Corp. Google Search for Chaidamuite Exceptional Minerals Google Search for Chaidamuite John Betts Fine Minerals Search for Chaidamuite McDougall Minerals Google Search for Chaidamuite Mineral News Website Link Rock and Mineral Shows Google Search for Chaidamuite Weinrich Minerals, Inc. Google Search for Chaidamuite Ask about Chaidamuite here : Print or Cut-and-Paste your Chaidamuite Specimen Label here :
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