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Ferrohexahydrite Mineral Data

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General Ferrohexahydrite Information

Help on Chemical  Formula: Chemical Formula: Fe++SO4•6(H2O)
Help on Composition: Composition: 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
Help on Empirical Formula: Empirical Formula: Fe2+(SO4)•6(H2O)
Help on IMA Status: IMA Status: Approved IMA 1962
Help on Locality: Locality: Sofiya Mine, Nikitovka Deposit, Novyy Donbass, Gorlovka, Doneck Oblast', Ukraine Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition, FERROus iron and HEXAHYDrate in allusion to the six water molecules in the crystal structure.
Help on Name Pronunciation: Name Pronunciation: Ferrohexahydrite + Pronunciation Say FERROHEXAHYDRITE
 

Ferrohexahydrite Image

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  Ferrohexahydrite

Comments: White to light brownish crust of ferrohexahydrite on matrix.
Location: Sohland, Bautzen, Oberlausitz, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Ferrohexahydrite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3846:1:3.3777
Help on Cell Dimensions: Cell Dimensions: a = 10.08, b = 7.28, c = 24.59, Z = 8; beta = 98.3° V = 1,785.57 Den(Calc)= 1.93
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.43(1), 2.93(0.7), 2.97(0.7),
 

Physical Properties of Ferrohexahydrite

Help on Color: Color: Colorless.
Help on Density: Density: 1.934
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Ferrohexahydrite

Help on Gladstone-Dale: Gladstone-Dale: 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
Ncalc = 1.48
Help on Optical Data: Optical Data: Biaxial (?), a=1.468, g=1.498, bire=0.0300
 

Calculated Properties of Ferrohexahydrite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.99 gm/cc
note: Specific Gravity of Ferrohexahydrite =1.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0057809601
Boson Index = 0.9942190399
Help on Photoelectric: Photoelectric: PEFerrohexahydrite = 6.93 barns/electron
U=PEFerrohexahydrite x rElectron Density= 13.82 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrohexahydrite is Not Radioactive
 

Ferrohexahydrite Classification

Help on  Dana Class: Dana Class: 29.06.08.03 (29)Hydrated Acid and Sulfates
  (29.06)where A XO4 � x(H2O)
  (29.06.08)Hexahydrite Group (Space Group: C2/c)
 
29.06.08.01 Hexahydrite MgSO4•6(H2O) A2/a 2/m
 
29.06.08.02 Bianchite (Zn,Fe)(SO4)•6(H2O) C 2/c 2/m
 
29.06.08.03 Ferrohexahydrite FeSO4•6(H2O) C 2/c 2/m
 
29.06.08.04 Nickelhexahydrite (Ni,Mg,Fe)(SO4)•6(H2O) C 2/c 2/m
 
29.06.08.05 Moorhouseite (Co,Ni,Mn)SO4•6(H2O) C 2/c 2/m
 
29.06.08.06 Chvaleticeite (Mn,Mg)SO4•6(H2O) C 2/c 2/m
Help on  Strunz Class: Strunz Class: 07.CB.25 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
 
07.CB.25 Bianchite (Zn,Fe)(SO4)•6(H2O) C 2/c 2/m
 
07.CB.25 Ferrohexahydrite FeSO4•6(H2O) C 2/c 2/m
 
07.CB.25 Chvaleticeite (Mn,Mg)SO4•6(H2O) C 2/c 2/m
 
07.CB.25 Hexahydrite MgSO4•6(H2O) A2/a 2/m
 
07.CB.25 Moorhouseite (Co,Ni,Mn)SO4•6(H2O) C 2/c 2/m
 
07.CB.25 Nickelhexahydrite (Ni,Mg,Fe)(SO4)•6(H2O) C 2/c 2/m
 

Other Ferrohexahydrite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Ferrohexahydrite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Ferrohexahydrite Specimen Label here :

Ferrohexahydrite

Fe++SO4•6(H2O)
Dana No: 29.06.08.03 Strunz No: 07.CB.25
Locality:

 

Notes:

 

 
   
 


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