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Bianchite Mineral Data

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General Bianchite Information

Help on Chemical  Formula: Chemical Formula: (Zn,Fe++)(SO4)•6(H2O)
Help on Composition: Composition: Molecular Weight = 267.16 gm
   Zinc      18.36 %  Zn   22.85 % ZnO
   Iron       5.23 %  Fe    6.72 % FeO
   Hydrogen   4.53 %  H    40.46 % H2O
   Sulfur    12.00 %  S    29.97 % SO3
   Oxygen    59.89 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn0.75Fe2+0.25(SO4)•6(H2O)
Help on Environment: Environment: Post-mine mineral, typically in efflorescences on mine walls, an alteration product of oxidizing sulfides.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1930
Help on Locality: Locality: Cave del Predil, Raibl mine, south of Tarvisio, Friuli-Venezia Giulia, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Angelo Bianchi (1892-1970), Italian mineralogist, University of Padova, Padova, Italy.
Help on Name Pronunciation: Name Pronunciation: Bianchite + Pronunciation Say BIANCHITE
Help on Synonym: Synonym: ICSD 41708
  PDF 16-Dec
 

Bianchite Image

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  Bianchite

Comments: White powdery crust of bianchite on clear to white gypsum.
Location: Glomsrudhollen, Amot, Modum, Buskerud, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Bianchite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.402:1:3.4011
Help on Cell Dimensions: Cell Dimensions: a = 10.096, b = 7.201, c = 24.492, Z = 8; beta = 98.27° V = 1,762.08 Den(Calc)= 2.01
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): 4.42(1), 4.03(0.9), 2.965(0.8),
 

Physical Properties of Bianchite

Help on Color: Color: Colorless, Yellow, Yellowish white, White, Light blue.
Help on Density: Density: 2.03
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Bianchite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2411,KPDmeas= 0.2388,KC= 0.2393
Ncalc = 1.48 - 1.49
Help on Optical Data: Optical Data: Biaxial (-), a=1.465, b=1.494, g=1.495, bire=0.0300, 2V(Calc)=20, 2V(Meas)=10.
 

Calculated Properties of Bianchite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.08 gm/cc
note: Specific Gravity of Bianchite =2.03 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0098287267
Boson Index = 0.9901712733
Help on Photoelectric: Photoelectric: PEBianchite = 10.90 barns/electron
U=PEBianchite x rElectron Density= 22.68 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bianchite is Not Radioactive
 

Bianchite Classification

Help on  Dana Class: Dana Class: 29.06.08.02 (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 Bianchite Information

Help on References: References: NAME( AntBidBlaNic5) 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 Bianchite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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

Bianchite

(Zn,Fe++)(SO4)•6(H2O)
Dana No: 29.06.08.02 Strunz No: 07.CB.25
Locality:

 

Notes:

 

 
   
 


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