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Zincrosasite Mineral Data
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General Zincrosasite Information
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 Chemical Formula: |
(Zn,Cu)2(CO3)(OH)2 |
| Composition: |
Molecular Weight = 223.42 gm |
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Zinc 36.58 % Zn 45.54 % ZnO |
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Copper 21.33 % Cu 26.70 % CuO |
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Hydrogen 0.90 % H 8.06 % H2O |
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Carbon 5.38 % C 19.70 % CO2 |
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Oxygen 35.81 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Zn1.25Cu0.75(CO3)(OH)2 |
| Environment: |
An inadequately described species. |
| IMA Status: |
Valid Species (Pre-IMA) 1959 |
| Locality: |
Tsumeb, Namibia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the zinc rich member of rosasite. |
| Name Pronunciation: |
Zincrosasite + Pronunciation  |
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Zincrosasite Image |
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Images:
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Zincrosasite Crystallography
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| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a |
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Physical Properties of Zincrosasite
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| Cleavage: |
{???} Good, {???} Good |
| Color: |
White, White green, Light green. |
| Density: |
4 - 4.2, Average = 4.09 |
| Diaphaneity: |
Transparent to Translucent |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Hardness: |
4.5 - Between Fluorite and Apatite |
| Luster: |
Subadamantine |
| Streak: |
white |
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Optical Properties of Zincrosasite
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| Gladstone-Dale: |
CI meas= -0.1 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2049,KC= 0.1863
Ncalc = 1.75 - 1.78 |
| Optical Data: |
Biaxial (?), b=1.84 |
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Calculated Properties of Zincrosasite
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| Electron Density: |
Bulk Density (Electron Density)=3.94 gm/cc
note: Specific Gravity of Zincrosasite =4.10 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEZincrosasite = 27.66 barns/electron
U=PEZincrosasite x rElectron Density= 108.89 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincrosasite is Not Radioactive |
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Zincrosasite Classification
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| Dana Class: |
16a.03.01.04 (16a)Carbonates - Hydroxyl or Halogen |
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(16a.03)where (A B)2 (XO3) Zq |
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(16a.03.01)Rosasite Group |
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16a.03.01.01 Rosasite (Cu,Zn)2(CO3)(OH)2 P 21/a 2/m |
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16a.03.01.02 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 21/a 2/m |
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16a.03.01.03 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri |
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16a.03.01.04 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 21/a 2/m |
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16a.03.01.05 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 21/a 2/m |
| Strunz Class: |
05.BA.10 05 - CARBONATES (NITRATES) |
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05.B - Carbonates with additional anions, without H2O |
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05.BA -With Cu, Co, Ni, Zn, Mg, Mn |
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05.BA.10 Nullaginite Ni2(CO3)(OH)2 P 21/m,P 21 Mono |
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05.BA.10 Georgeite Cu5(CO3)3(OH)4•6(H2O) None |
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05.BA.10 Malachite Cu2(CO3)(OH)2 P 21/a 2/m |
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05.BA.10 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 21/a 2/m |
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05.BA.10 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 21/a 2/m |
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05.BA.10 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri |
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05.BA.10 Pokrovskite Mg2(CO3)(OH)2•0.5(H2O) P 21/a 2/m |
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05.BA.10 Rosasite (Cu,Zn)2(CO3)(OH)2 P 21/a 2/m |
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05.BA.10 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 21/a 2/m |
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05.BA.10 Chukanovite! Fe2(CO3)(OH)2 P 21/a 2/m |
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Other Zincrosasite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Zincrosasite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Print or Cut-and-Paste your Zincrosasite Specimen Label here :
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Zincrosasite
(Zn,Cu)2(CO3)(OH)2
Dana No: 16a.03.01.04 Strunz No: 05.BA.10
Locality:
Notes:
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