Mineralogy Database

Cuprorivaite Mineral Data

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General Cuprorivaite Information

Help on Chemical  Formula: Chemical Formula: CaCuSi4O10
Help on Composition: Composition: Molecular Weight = 375.96 gm
   Calcium  10.66 %  Ca   14.92 % CaO
   Copper   16.90 %  Cu   21.16 % CuO
   Silicon  29.88 %  Si   63.93 % SiO2
   Oxygen   42.56 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaCuSi4O10
Help on Environment: Environment: Intimately mixed with quartz (Vesuvius, Italy); in a mudstone xenolith ejected from a scoria cone (Sattelberg volcanic cone, Germany).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1938
Help on Locality: Locality: Vesuvius, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for a high copper content and presumed similarity to rivaite.
Help on Synonym: Synonym: ICSD 72612
  PDF 12-512
 

Cuprorivaite Image

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  Cuprorivaite

Comments: Pale blue grains of cuprorivaite.
Location: Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Cuprorivaite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.07123
Help on Cell Dimensions: Cell Dimensions: a = 7.3, c = 15.12, Z = 4; V = 805.74 Den(Calc)= 3.10
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/nnc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.29(1), 3(0.9), 3.78(0.9),
 

Physical Properties of Cuprorivaite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Blue.
Help on Density: Density: 3.08
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light blue
 

Optical Properties of Cuprorivaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.015 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1973,KPDmeas= 0.1985,KC= 0.2003
Ncalc = 1.62
Help on Optical Data: Optical Data: Uniaxial (-), e=1.59, w=1.633, bire=0.0430.
 

Calculated Properties of Cuprorivaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.03 gm/cc
note: Specific Gravity of Cuprorivaite =3.08 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PECuprorivaite = 9.72 barns/electron
U=PECuprorivaite x rElectron Density= 29.45 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cuprorivaite is Not Radioactive
 

Cuprorivaite Classification

Help on  Dana Class: Dana Class: 71.02.03.01 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.02)with 2:1 Layers
  (71.02.03)Cuprorivaite group
 
71.02.03.01 Cuprorivaite CaCuSi4O10 P 4/nnc 4/m 2/m 2/m
 
71.02.03.02 Gillespite BaFeSi4O10 P 4/ncc 4/m 2/m 2/m
 
71.02.03.03 Effenbergerite BaCuSi4O10 P 4/nnc 4/m 2/m 2/m
 
71.02.03.04 Wesselsite! SrCuSi4O10 P 4/ncc 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.EA.05 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EA -Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
 
09.EA.05 Cuprorivaite CaCuSi4O10 P 4/nnc 4/m 2/m 2/m
 
09.EA.05 Effenbergerite BaCuSi4O10 P 4/nnc 4/m 2/m 2/m
 
09.EA.05 Gillespite BaFeSi4O10 P 4/ncc 4/m 2/m 2/m
 
09.EA.05 Wesselsite! SrCuSi4O10 P 4/ncc 4/m 2/m 2/m
 

Other Cuprorivaite Information

Help on References: References: NAME( AntBidBlaNic2) 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 Cuprorivaite :
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
15 - WWW-MINCRYST

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Cuprorivaite

CaCuSi4O10
Dana No: 71.02.03.01 Strunz No: 09.EA.05
Locality:

 

Notes:

 

 
   
 


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