Tangeite Mineral Data

Tangeite Mineral Data
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General Tangeite Information

Help on Chemical Formula: Chemical Formula: CaCu(VO4)(OH)
Help on Composition: Composition: Molecular Weight = 235.57 gm
   Calcium   17.01 %  Ca   23.80 % CaO
   Vanadium  21.62 %  V    38.60 % V2O5
   Copper    26.98 %  Cu   33.77 % CuO
   Hydrogen   0.43 %  H     3.82 % H2O
   Oxygen    33.96 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaCu(VO4)(OH)
Help on Environment: Environment: Secondary mineral in vanadium-bearing sandstone deposits. Forms a series with conichalcite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1848
Help on Locality: Locality: Tange Gorge, Fergana Valley, Kyrgystan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tangeite Say TANGEITE
Help on Synonym: Synonym: Calciovolborthite
 

Tangeite Image

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Tangeite

Comments: Green. rosette crystalline-aggregates of tangeite on sandstone matrix.
Location: Thompson, Grand County, Utah, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Tangeite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8045:1:0.6382
Help on Cell Dimensions: Cell Dimensions: a = 7.45, b = 9.26, c = 5.91, Z = 4; V = 407.71 Den(Calc)= 3.84
Help on Crystal System: Crystal System: Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 212121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.61(1), 2.88(1), 4.15(0.75),
Click Here for Large Tangeite Structure Window Crystal Structure:

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Basso R , Palenzona A , Zefiro L , Neues Jahrbuch fur Mineralogie, Monatshefte , 1989 (1989) p.300-308, Crystal structure refinement of a Sr-bearing term related to copper, vanadates and arsenates of adelite and descloizite groups, Locality: Molinello mine, Val Graveglia, Northern Appenines, Eastern Liguria, Italy

 

Physical Properties of Tangeite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Yellow, Yellow green, Olive green.
Help on Density: Density: 3.5
Help on Diaphaneity: Diaphaneity: Subtranslucent
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Pearly
Help on Magnetism: Magnetism: Nonmagnetic
 

Optical Properties of Tangeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.192 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2734,KPDmeas= 0.3,KC= 0.2516
Ncalc = 1.88 - 1.97
Help on Optical Data: Optical Data: Biaxial (+), a=2.01, b=2.05, g=2.09, bire=0.0800, 2V(Calc)=88, 2V(Meas)=83.
 

Calculated Properties of Tangeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.68 gm/cc
note: Specific Gravity of Tangeite =3.84 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0009339406
Boson Index = 0.9990660594
Help on Photoelectric: Photoelectric: PETangeite = 18.16 barns/electron
U=PETangeite x rElectron Density= 66.89 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tangeite is Not Radioactive
 

Tangeite Classification
Help on Dana Class: Dana Class: 41.05.01.06 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.05)where (A B)2 (XO4) Zq
  (41.05.01)Adelite Group
 
41.05.01.01 Adelite CaMg(AsO4)(OH) P 212121 2 2 2
 
41.05.01.02 Conichalcite CaCu(AsO4)(OH) P 212121 2 2 2
 
41.05.01.03 Austinite CaZn(AsO4)(OH) P 212121 2 2 2
 
41.05.01.04 Duftite-beta? PbCu(AsO4)(OH) P 212121 2 2 2
 
41.05.01.05 Gabrielsonite PbFe(AsO4)(OH) P 21m mm2
 
41.05.01.06 Tangeite CaCu(VO4)(OH) P 212121 2 2 2
 
41.05.01.07 Nickelaustinite Ca(Ni,Zn)(AsO4)(OH) P 212121 2 2 2
 
41.05.01.08 Cobaltaustinite CaCo(AsO4)(OH) P 212121 2 2 2
 
41.05.01.09 Arsendescloizite PbZn(AsO4)(OH) P 212121 2 2 2
 
41.05.01.10 Gottlobite! CaMg(VO4,AsO4)(OH) P 212121 2 2 2
Help on Strunz Class: Strunz Class: 08.BH.35 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BH -With medium-sized and large cations, (OH,etc.):RO4 = 1:1
 
08.BH.35 Austinite CaZn(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Adelite CaMg(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Arsendescloizite PbZn(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Duftite-alpha PbCu(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Duftite-beta? PbCu(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Cobaltaustinite CaCo(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Conichalcite CaCu(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Gabrielsonite PbFe(AsO4)(OH) P 21m mm2
 
08.BH.35 Nickelaustinite Ca(Ni,Zn)(AsO4)(OH) P 212121 2 2 2
 
08.BH.35 Tangeite CaCu(VO4)(OH) P 212121 2 2 2
 
08.BH.35 Gottlobite! CaMg(VO4,AsO4)(OH) P 212121 2 2 2
 

Other Tangeite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.80,p185,1995) OPTIC PROP.(Am.Min.,Vol.80,p185,1995)
Help on See Also: See Also: Links to other databases for Tangeite :
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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Print or Cut-and-Paste your Tangeite Specimen Label here :

Tangeite

CaCu(VO4)(OH)
Dana No: 41.05.01.06 Strunz No: 08.BH.35
Locality:

 

Notes: