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Chvaleticeite Mineral Data

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General Chvaleticeite Information

Help on Chemical  Formula: Chemical Formula: (Mn++,Mg)SO4•6(H2O)
Help on Composition: Composition: Molecular Weight = 251.44 gm
   Magnesium   2.42 %  Mg    4.01 % MgO
   Manganese  16.39 %  Mn   21.16 % MnO
   Hydrogen    4.81 %  H    42.99 % H2O
   Sulfur     12.75 %  S    31.84 % SO3
   Oxygen     63.63 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.75Mg0.25(SO4)•6(H2O)
Help on Environment: Environment: Found in the oxidation zone of a pyrite-manganese silicate deposit.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Chvaletice and Jachymov (Joachimsthal), Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

Chvaleticeite Image

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  Chvaleticeite

Comments: Powdery mass of chvaleticeite.
Location: Chvaletice, Bohemia, Vychodocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Chvaleticeite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3881:1:3.3563
Help on Cell Dimensions: Cell Dimensions: a = 10.05, b = 7.24, c = 24.3, Z = 8; beta = 98° V = 1,750.91 Den(Calc)= 1.91
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): 4.91(1), 4.47(0.8), 5.45(0.8),
 

Physical Properties of Chvaleticeite

Help on Color: Color: Yellow green, White, Pink.
Help on Density: Density: 1.84
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.
Help on Hardness: Hardness: 1.5 - Between Talc and Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Chvaleticeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.037 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2521,KPDmeas= 0.2617,KC= 0.2522
Ncalc = 1.46 - 1.48
Help on Optical Data: Optical Data: Biaxial (?), a=1.457, g=1.506, bire=0.0490
 

Calculated Properties of Chvaleticeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.97 gm/cc
note: Specific Gravity of Chvaleticeite =1.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0036857683
Boson Index = 0.9963142317
Help on Photoelectric: Photoelectric: PEChvaleticeite = 4.88 barns/electron
U=PEChvaleticeite x rElectron Density= 9.62 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chvaleticeite is Not Radioactive
 

Chvaleticeite Classification

Help on  Dana Class: Dana Class: 29.06.08.06 (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 Chvaleticeite Information

Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.72,p1023,1987) OPTIC PROP.(Am.Min.,Vol.72,p1023,1987)
Help on See Also: See Also: Links to other databases for Chvaleticeite :
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 Chvaleticeite Specimen Label here :

Chvaleticeite

(Mn++,Mg)SO4•6(H2O)
Dana No: 29.06.08.06 Strunz No: 07.CB.25
Locality:

 

Notes:

 

 
   
 


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