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Smithsonite Mineral Data + |
General Smithsonite Information |
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| ZnCO3 | |||
| Molecular Weight = 125.40 gm | |||
| Zinc 52.15 % Zn 64.90 % ZnO | |||
| Carbon 9.58 % C 35.10 % CO2 | |||
| Oxygen 38.28 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Zn(CO3) | |||
| Commonly found as an oxidation product of Zn-bearing ores. | |||
| Valid Species (Pre-IMA) 1832 | |||
| Mendips at Derbyshire, UK. Link to MinDat.org Location Data. | |||
| Named after James Smithson (1765-1829), English mineralogist who financed the founding of the Smithsonian Institution in Washington, DC, USA. | |||
| Calamine | |||
| Galmei | |||
| ICSD 100679 | |||
| PDF 8-449 | |||
| Zinc spar | |||
Smithsonite Image | |||
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Smithsonite Crystallography |
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| a:c = 1:3.22974 | |||
| a = 4.653, c = 15.028, Z = 6; V = 281.77 Den(Calc)= 4.43 | |||
| Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c | |||
| By Intensity(I/Io): 2.75(1), 3.55(0.5), 1.703(0.45), | |||
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Physical Properties of Smithsonite |
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| [1011] Perfect, [1011] Perfect, 1011 Perfect | |||
| Grayish white, Dark gray, Green, Blue, Yellow. | |||
| 4.4 - 4.5, Average = 4.45 | |||
| Subtransparent to translucent | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Botryoidal - "Grape-like" rounded forms (e.g.. malachite). | |||
| Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). | |||
| Reniform - "Kidney like" in shape (e.g.. hematite). | |||
| 4.5 - Between Fluorite and Apatite | |||
| None. | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Smithsonite |
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| colorless. | |||
| colorless. | |||
| CI meas= 0.062 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= 0.057 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1665,KPDmeas= 0.1657,KC= 0.1766 |
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| Uniaxial (-), e=1.625, w=1.85, bire=0.2250. | |||
Calculated Properties of Smithsonite |
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relectron=4.24 gm/cc |
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| Fermion Index = 0.02261 Boson Index = 0.97739 |
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PESmithsonite = 26.17 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Smithsonite is Not Radioactive |
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Smithsonite Classification |
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| 14.1.1.6 (14)Anhydrous Carbonates | |||
| (14.1)with Simple Formula A+ CO3 | |||
| (14.1.1)Calcite Group (Trigonal: R3¯c) | |||
| V/B.02-60 V - Nitrates, Carbonates and Borates | |||
| V/B - Waterfree carbonates [CO3]2- without unfamiliar anions | |||
| V/B.02 - Calcite group | |||
Other Smithsonite Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Mason68) | |||
| Links to other databases for Smithsonite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 - Franklin Minerals(Dunn) 8 - Franklin Minerals(Palache) 9 - Glendale Community College 10 -Google Images 11 -Google Scholar 12 -Handbook of Mineralogy (UofA) 13 - HyperPhysics 14 -MinDAT 15 -MinMax(Deutsch) 16 -MinMax(English) 17 - Mineral and Gemstone Kingdom 18 -Mineralienatlas (Deutsch) 19 - Minerals of Wisconsin 20 -QUT Mineral Atlas 21 -University of Colorado - Mineral Structure Data 22 - WWW-MINCRYST 23 - YupRocks 24 -theimage 25 -École des Mines de Paris Search for Smithsonite using: Visit our Advertisers for Smithsonite : Translate Smithsonite Mineral Data : Ask about Smithsonite here : Print or Cut-and-Paste your Smithsonite Specimen Label here :
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