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Ferrarisite Mineral Data

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General Ferrarisite Information

Help on Chemical  Formula: Chemical Formula: Ca5(AsO3OH)2(AsO4)2•9(H2O)
Help on Composition: Composition: Molecular Weight = 920.22 gm
   Calcium   21.78 %  Ca   30.47 % CaO
   Arsenic   32.57 %  As   49.95 % As2O5
   Hydrogen   2.19 %  H    19.58 % H2O
   Oxygen    43.47 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca5(AsO3OH)2(AsO4)2•9(H2O)
Help on Environment: Environment: Post-mine low-temperature reaction product of carbonate gangue with arsenical solutions derived from arsenic
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Gabe-Gottes mine, Rauenthal, near Sainte-Marie-aux-Mines, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Giovanni Ferraris (1937- ), Institute of Mineralogy, Crystallography and Geochemistry, University of Turin, Turin, Italy.
Help on Name Pronunciation: Name Pronunciation: Ferrarisite + Pronunciation Say FERRARISITE
Help on Synonym: Synonym: ICSD 200781
  PDF 33-280

Ferrarisite Image

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Comments: Translucent crystal spray of ferrarisite on matrix.
Location: Gift Grube, Sainte-Marie-aux-Mines, Alsace, Haute-Rhin, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrarisite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2338:1:1.6658
Help on Cell Dimensions: Cell Dimensions: a = 8.294, b = 6.722, c = 11.198, Z = 1; alpha = 106.16°, beta = 92.94°, gamma = 99.2° V = 591.15 Den(Calc)= 2.58
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.81(1), 10.84(1), 2.831(0.9),

Physical Properties of Ferrarisite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.63
Help on Diaphaneity: Diaphaneity: Transparent
Help on Streak: Streak: white

Optical Properties of Ferrarisite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.046 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2212,KPDmeas= 0.2179,KC= 0.2115
Ncalc = 1.55 - 1.56
Help on Optical Data: Optical Data: Biaxial (+), a=1.562, b=1.572, g=1.585, bire=0.0230, 2V(Calc)=84, 2V(Meas)=83.

Calculated Properties of Ferrarisite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.58 gm/cc
note: Specific Gravity of Ferrarisite =2.63 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.000505904
Boson Index = 0.999494096
Help on Photoelectric: Photoelectric: PEFerrarisite = 24.25 barns/electron
U=PEFerrarisite x rElectron Density= 62.65 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrarisite is Not Radioactive

Ferrarisite Classification

Help on  Dana Class: Dana Class: (39)Hydrated Acid Phosphates, etc
  (39.02)H2 (AB)5 (XO4)4 � x(H2O)
  (39.02.03)Dana Group Ferrarisite Ca5(AsO3OH)2(AsO4)2•9(H2O) P1 1
Help on  Strunz Class: Strunz Class: 08.CJ.30 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CJ -With only large cations
08.CJ.30 Ferrarisite Ca5(AsO3OH)2(AsO4)2•9(H2O) P1 1

Other Ferrarisite Information

Help on References: References: NAME( AntBidBlaNic4) 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 Ferrarisite :
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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Dana No: Strunz No: 08.CJ.30





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