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Adamite Mineral Data + |
General Adamite Information |
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| Zn2(AsO4)(OH) | |||
| Molecular Weight = 286.71 gm | |||
| Zinc 45.61 % Zn 56.78 % ZnO | |||
| Arsenic 26.13 % As 40.08 % As2O5 | |||
| Hydrogen 0.35 % H 3.14 % H2O | |||
| Oxygen 27.90 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Zn2(AsO4)(OH) | |||
| Valid Species (Pre-IMA) 1866 | |||
| Chile, Atacama, Chañarcillo Link to MinDat.org Location Data. | |||
| Named after the French mineralogist Gilbert Joseph Adam (1795-1881). | |||
| ICSD 34868 | |||
| PDF 39-1354 | |||
Adamite Image | |||
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Adamite Crystallography |
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| a:b:c =0.9744:1:0.7089 | |||
| a = 8.306, b = 8.524, c = 6.043, Z = 4; V = 427.85 Den(Calc)= 4.45 | |||
| Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm | |||
| By Intensity(I/Io): 2.45(1), 2.97(0.9), 4.9(0.9), | |||
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Physical Properties of Adamite |
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| [101] Good, [010] Poor | |||
| Yellow, Green, Violet, Pink, Yellowish green. | |||
| 4.3 - 4.5, Average = 4.4 | |||
| Subtransparent | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces. | |||
| Encrustations - Forms crust-like aggregates on matrix. | |||
| Tabular - Form dimensions are thin in one direction. | |||
| 3.5 - Copper Penny | |||
| Fluorescent and phosphorescent. | |||
| Vitreous - Resinous | |||
| white | |||
Optical Properties of Adamite |
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| CI meas= -0.02 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1667,KPDmeas= 0.1686,KC= 0.1653 |
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| Biaxial (+/-), a=1.708-1.722, b=1.742-1.744, g=1.763-1.773, bire=0.0510-0.0550, 2V(Calc)=74-84, 2V(Meas)=88. Dispersion none. | |||
Calculated Properties of Adamite |
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relectron=4.16 gm/cc |
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| Fermion Index = 0.01883 Boson Index = 0.98117 |
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PEAdamite = 41.42 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Adamite is Not Radioactive |
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Adamite Classification |
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| 41.6.6.3 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | |||
| (41.6)where (A)2 (XO4) Zq | |||
| (41.6.6)Dana Group | |||
| VII/B.06-30 VII - Phosphates, Arsenates and Vanadates | |||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds | |||
| VII/B.06 - Adamite group, Libethenite - Paradamite | |||
Other Adamite Information |
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| NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Sinkankas66) | |||
| Links to other databases for Adamite : 1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 - Franklin Minerals(Dunn) 7 - Glendale Community College 8 -Google Images 9 -Google Scholar 10 -Handbook of Mineralogy (UofA) 11 - HyperPhysics 12 -MinDAT 13 -MinMax(Deutsch) 14 -MinMax(English) 15 - Mineral and Gemstone Kingdom 16 -Mineralienatlas (Deutsch) 17 -QUT Mineral Atlas 18 - WWW-MINCRYST 19 -École des Mines de Paris Search for Adamite using: Visit our Advertisers for Adamite : Translate Adamite Mineral Data : Ask about Adamite here : Print or Cut-and-Paste your Adamite Specimen Label here :
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