Zaratite Mineral Data + 
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- 16b.4.1.1 Zaratite Ni3(CO3)(OH)4·4(H2O) Unk (in part amorphous) Cubic
- V/E.05-10 Otwayite Ni2(CO3)(OH)2·(H2O) Unk Ortho
- V/E.05-20 Zaratite Ni3(CO3)(OH)4·4(H2O) Unk (in part amorphous) Cubic
- V/E.05-30 Kambaldaite NaNi4(CO3)3(OH)3·3(H2O) P 63 6
- V/E.05-40 Szymanskiite Hg16(Ni,Mg)6(H3O)8(CO3)12·3(H2O) P 63 6
General Zaratite Information |
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 Chemical Formula: |
Ni3(CO3)(OH)4·4(H2O) | ||
| Composition: |
Molecular Weight = 376.17 gm | ||
| Nickel 46.81 % Ni 59.57 % NiO | |||
| Hydrogen 3.22 % H 28.73 % H2O | |||
| Carbon 3.19 % C 11.70 % CO2 | |||
| Oxygen 46.79 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ni3(CO3)(OH)4·4(H2O) | ||
| Environment: |
Secondary nickel mineral in Ni-bearing rocks. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1851 | ||
| Locality: |
Cape Ortegal, Galicia, Spain. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after Antonio Gil y Zarate (1793-1861), Spanish diplomat, general director of public education, and counselor of state. | ||
| Synonym: |
Emerald Nickel | ||
| Texasite | |||
Zaratite Image | |||
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Images:
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Zaratite Crystallography |
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| Cell Dimensions: |
a = 6.16, Z = 1; V = 233.74 Den(Calc)= 2.67 | ||
| Crystal System: |
IsometricSpace Group: Unk (in part amorphous) | ||
| X Ray Diffraction: |
By Intensity(I/Io): 5.07(1), 2.45(0.7), 8.93(0.7), | ||
Physical Properties of Zaratite |
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| Cleavage: |
None | ||
| Color: |
Emerald green. | ||
| Density: |
2.6 | ||
| Diaphaniety: |
Translucent | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. | ||
| Habit: |
Mammillary - Larger "breast-like" rounded forms resembling botryoidal (e.g. malachite). | ||
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. | ||
| Hardness: |
3-3.5 - Calcite-Copper Penny | ||
| Luminescence: |
None. | ||
| Luster: |
Vitreous - Greasy | ||
| Streak: |
light green | ||
Optical Properties of Zaratite |
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| Gladstone-Dale: |
CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.036 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2191,KPDmeas= 0.225,KC= 0.2272 |
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| Optical Data: |
Isotropic, n=1.56-1.61. | ||
Calculated Properties of Zaratite |
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| Electron Density: |
relectron=2.63 gm/cc |
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| Fermion Index |
Fermion Index = 0.00586 Boson Index = 0.99414 |
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| Photoelectric: |
PEZaratite = 18.13 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Zaratite is Not Radioactive |
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Zaratite Classification |
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| Dana Class: |
16b.4.1.1 (16b)Carbonates - Hydroxyl or Halogen | ||
| (16b.4)where (A)m (B)n (XO3)p Zq · x(H2O), with (m+n):p=8:1 | |||
| (16b.4.1)Dana Group | |||
| Strunz Class: |
V/E.05-20 V - Nitrates, Carbonates and Borates | ||
| V/E - Water-bearing carbonates with unfamiliar anions | |||
| V/E.05 - Otwayite - Szymanskite series | |||
Other Zaratite Information |
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
| See Also: |
Links to other databases for Zaratite : 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 - Minerals of Wisconsin 13 -QUT Mineral Atlas 14 -École des Mines de Paris Search for Zaratite using: Visit our Advertisers for Zaratite : Translate Zaratite Mineral Data : Ask about Zaratite here : Print or Cut-and-Paste your Zaratite Specimen Label here :
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