Miersite Mineral Data + 
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- 9.1.7.1 Nantokite CuCl F43m 4 3m
- 9.1.7.2 Miersite (Ag,Cu)I F43m 4 3m
- 9.1.7.3 Marshite CuI F43m 4 3m
- III/A.01-10 Nantokite CuCl F43m 4 3m
- III/A.01-20 Marshite CuI F43m 4 3m
- III/A.01-30 Miersite (Ag,Cu)I F43m 4 3m
General Miersite Information |
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 Chemical Formula: |
(Ag,Cu)I | ||
| Composition: |
Molecular Weight = 223.69 gm | ||
| Copper 7.10 % Cu 8.00 % Cu2O | |||
| Silver 36.17 % Ag 38.85 % Ag2O | |||
| Iodine 56.73 % I 56.73 % I | |||
| - % I -3.58 % -O=I2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ag0.75Cu0.25I | ||
| Environment: |
Forms a partial series with marshite. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1898 | ||
| Locality: |
Broken Hill, New South Wales, Australia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Henry Alexander Miers (1848-1942), English mineralogist, Oxford University. | ||
| Synonym: |
ICSD 61542 | ||
| PDF 2-499 | |||
Miersite Image | |||
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Images:
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Miersite Crystallography |
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| Cell Dimensions: |
a = 6.504, Z = 4; V = 275.13 Den(Calc)= 5.40 | ||
| Crystal System: |
Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: F43m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.23(1), 1.95(0.8), 2.28(0.8), | ||
Physical Properties of Miersite |
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| Cleavage: |
[111] Good, [111] Good, [111] Good | ||
| Color: |
Greenish, Canary yellow, Light yellow. | ||
| Density: |
5.64 | ||
| Diaphaniety: |
Transparent to subtranslucent | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. | ||
| Hardness: |
2.5-3 - Finger Nail-Calcite | ||
| Luster: |
Adamantine | ||
| Streak: |
greenish yellow | ||
Optical Properties of Miersite |
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| Gladstone-Dale: |
CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.044 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2222,KPDmeas= 0.2128,KC= 0.2128 |
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| Optical Data: |
Isotropic, n=2.2. | ||
Calculated Properties of Miersite |
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| Electron Density: |
relectron=4.82 gm/cc |
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| Fermion Index |
Fermion Index = 0 Boson Index = 1 |
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| Photoelectric: |
PEMiersite = 323.69 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Miersite is Not Radioactive |
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Miersite Classification |
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| Dana Class: |
9.1.7.2 (9)Anhydrous and Hydrated Halides | ||
| (9.1)where A X | |||
| (9.1.7)Dana Group | |||
| Strunz Class: |
III/A.01-30 III - Halogenides | ||
| III/A - Simple halogenides, without water Metal : Halogen = 1 : 1 | |||
| III/A.01 - Nantokite - Miersite series | |||
Other Miersite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
| See Also: |
Links to other databases for Miersite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Miersite using: Visit our Advertisers for Miersite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Miersite Mineral Data : Ask about Miersite here : Print or Cut-and-Paste your Miersite Specimen Label here :
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