Retgersite Mineral Data + 
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- 29.6.9.1 Retgersite NiSO4·6(H2O) P 41212,P 43212 4 2 2
- VI/C.05-10 Hexahydrite MgSO4·6(H2O) A2/a 2/m
- VI/C.05-20 Ferrohexahydrite FeSO4·6(H2O) C 2/c 2/m
- VI/C.05-30 Chvaleticeite (Mn,Mg)SO4·6(H2O) C 2/c 2/m
- VI/C.05-40 Moorhouseite (Co,Ni,Mn)SO4·6(H2O) C 2/c 2/m
- VI/C.05-50 Nickelhexahydrite (Ni,Mg,Fe)(SO4)·6(H2O) C 2/c 2/m
- VI/C.05-60 Bianchite (Zn,Fe)(SO4)·6(H2O) C 2/c 2/m
- VI/C.05-70 Retgersite NiSO4·6(H2O) P 41212,P 43212 4 2 2
General Retgersite Information |
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 Chemical Formula: |
NiSO4·6(H2O) | ||
| Composition: |
Molecular Weight = 262.85 gm | ||
| Nickel 22.33 % Ni 28.42 % NiO | |||
| Hydrogen 4.60 % H 41.12 % H2O | |||
| Sulfur 12.20 % S 30.46 % SO3 | |||
| Oxygen 60.87 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ni(SO4)·6(H2O) | ||
| IMA Status: |
Valid Species (Pre-IMA) 1949 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 62051 | ||
| PDF 47-1811 | |||
Retgersite Image | |||
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Images:
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Retgersite Crystallography |
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| Axial Ratios: |
a:c = 1:2.69537 | ||
| Cell Dimensions: |
a = 6.782, c = 18.28, Z = 4; V = 840.80 Den(Calc)= 2.08 | ||
| Crystal System: |
Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 41212,P 43212 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.25(1), 4.57(0.4), 2.964(0.2), | ||
| Forms:
Mouse |
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Physical Properties of Retgersite |
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| Cleavage: |
[001] Perfect | ||
| Color: |
Dark green. | ||
| Density: |
2.07 | ||
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. | ||
| Hardness: |
2.5 - Finger Nail | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
greenish white | ||
Optical Properties of Retgersite |
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| Gladstone-Dale: |
CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.24,KPDmeas= 0.2411,KC= 0.2437 |
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| Optical Data: |
Uniaxial (-), e=1.4873, w=1.5109, bire=0.0236. | ||
Calculated Properties of Retgersite |
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| Electron Density: |
relectron=2.14 gm/cc |
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| Fermion Index |
Fermion Index = 0.00373 Boson Index = 0.99627 |
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| Photoelectric: |
PERetgersite = 9.24 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Retgersite is Not Radioactive |
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Retgersite Classification |
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| Dana Class: |
29.6.9.1 (29)Hydrated Acid and Sulfates | ||
| (29.6)where A XO4 · x(H2O) | |||
| (29.6.9)Dana Group | |||
| Strunz Class: |
VI/C.05-70 VI - Sulfates,Chromates,Molybdates and Tungstates | ||
| VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size | |||
| VI/C.05 - Hexahydrite group | |||
Other Retgersite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Retgersite : 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 -École des Mines de Paris Search for Retgersite using: Visit our Advertisers for Retgersite : Translate Retgersite Mineral Data : Ask about Retgersite here : Print or Cut-and-Paste your Retgersite Specimen Label here :
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