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Ferrohexahydrite Mineral Data + |
General Ferrohexahydrite Information |
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| Fe++SO4·6(H2O) | |||
| Molecular Weight = 260.00 gm | |||
| Iron 21.48 % Fe 27.63 % FeO | |||
| Hydrogen 4.65 % H 41.57 % H2O | |||
| Sulfur 12.33 % S 30.79 % SO3 | |||
| Oxygen 61.54 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Fe2+(SO4)·6(H2O) | |||
| Approved IMA 1962 | |||
| Sofiya Mine, Nikitovka Deposit, Novyy Donbass, Gorlovka, Doneck Oblast', Ukraine Link to MinDat.org Location Data. | |||
| Named for the composition, FERROus iron and HEXAHYDrate in allusion to the six water molecules in the crystal structure. | |||
Ferrohexahydrite Image | |||
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Ferrohexahydrite Crystallography |
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| a:b:c =1.3846:1:3.3777 | |||
| a = 10.08, b = 7.28, c = 24.59, Z = 8; beta = 98.3° V = 1,785.57 Den(Calc)= 1.93 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c | |||
| By Intensity(I/Io): 4.43(1), 2.93(0.7), 2.97(0.7), | |||
Physical Properties of Ferrohexahydrite |
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| Colorless. | |||
| 1.934 | |||
| Transparent | |||
| 2 - Gypsum | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Ferrohexahydrite |
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| CI meas= -0.008 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2503,KPDmeas= 0.2497,KC= 0.2478 |
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| Biaxial (?), a=1.468, g=1.498, bire=0.0300 | |||
Calculated Properties of Ferrohexahydrite |
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relectron=1.99 gm/cc |
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| Fermion Index = 0.00578 Boson Index = 0.99422 |
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PEFerrohexahydrite = 6.93 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ferrohexahydrite is Not Radioactive |
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Ferrohexahydrite Classification |
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| 29.6.8.3 (29)Hydrated Acid and Sulfates | |||
| (29.6)where A XO4 · x(H2O) | |||
| (29.6.8)Hexahydrite Group (Space Group: C2/c) | |||
| VI/C.05-20 VI - Sulfates,Chromates,Molybdates and Tungstates | |||
| VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size | |||
| VI/C.05 - Hexahydrite group | |||
Other Ferrohexahydrite Information |
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| PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Ferrohexahydrite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Ferrohexahydrite using: Visit our Advertisers for Ferrohexahydrite : Translate Ferrohexahydrite Mineral Data : Ask about Ferrohexahydrite here : Print or Cut-and-Paste your Ferrohexahydrite Specimen Label here :
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