[Mineral Galleries] [About Me] [e-Bay Items] [Latest News] [How to Order] A Diverse Selection of Beautifully Unique Gem & Mineral Specimens Desert Winds Gems & Minerals • For All Levels of Collectors Worldwide Aesthetic & Rare Mineral Specimens • Regular Updates General Ferrohexahydrite InformationFe++SO4•6(H2O) |
Molecular Weight = 260.00 gm |
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Iron 21.48 % Fe 27.63 % FeO |
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Hydrogen 4.65 % H 41.57 % H2O |
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Sulfur 12.33 % S 30.79 % SO3 |
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Oxygen 61.54 % O |
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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 + Pronunciation |
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Ferrohexahydrite Crystallographya: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 FerrohexahydriteColorless. |
1.934 |
Transparent |
2 - Gypsum |
Vitreous (Glassy) |
white |
| Optical Properties of FerrohexahydriteCI 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 Ncalc = 1.48 Biaxial (?), a=1.468, g=1.498, bire=0.0300 |
| Calculated Properties of FerrohexahydriteBulk Density (Electron Density)=1.99 gm/cc |
note: Specific Gravity of Ferrohexahydrite =1.93 gm/cc. Fermion Index = 0.0057809601 |
Boson Index = 0.9942190399 PEFerrohexahydrite = 6.93 barns/electron |
U=PEFerrohexahydrite x rElectron Density= 13.82 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferrohexahydrite is Not Radioactive | Ferrohexahydrite Classification29.06.08.03 (29)Hydrated Acid and Sulfates |
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(29.06)where A XO4 · x(H2O) |
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(29.06.08)Hexahydrite Group (Space Group: C2/c) |
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07.CB.25 07 - SULFATES (SELENATES, TELLURATES) |
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07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O |
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07.CB -With only medium-sized cations |
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| Other Ferrohexahydrite InformationPHYS. 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 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Ferrohexahydrite using: Visit our Advertisers for Ferrohexahydrite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Ferrohexahydrite Mineral Data : Ask about Ferrohexahydrite here : Print or Cut-and-Paste your Ferrohexahydrite Specimen Label here :
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