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Metavariscite Mineral Data

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General Metavariscite Information

Help on Chemical  Formula: Chemical Formula: AlPO4•2(H2O)
Help on Composition: Composition: Molecular Weight = 157.98 gm
   Aluminum    17.08 %  Al   32.27 % Al2O3
   Phosphorus  19.61 %  P    44.92 % P2O5
   Hydrogen     2.55 %  H    22.81 % H2O
   Oxygen      60.76 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al(PO4)•2(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1925
Help on Locality: Locality: Edison-Bird mine, Utahlite Hill, Lucin, Box Elder Co., Utah, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its dimorphic relationship to variscite.
Help on Name Pronunciation: Name Pronunciation: Metavariscite + Pronunciation Say METAVARISCITE
Help on Synonym: Synonym: ICSD 2643
  PDF 33-32
 

Metavariscite Image

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  Metavariscite

Comments: Clear tabular crystals of metavariscite.
Location: Utahlite claim, Lucin, Box Elder County, Utah, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Metavariscite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5448:1:0.8885
Help on Cell Dimensions: Cell Dimensions: a = 5.182, b = 9.5115, c = 8.4516, Z = 4; beta = 90.4° V = 416.56 Den(Calc)= 2.52
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.758(1), 2.705(0.95), 4.227(0.65),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 0) ( 1 1 0) ( 1 3 0) ( 0 1 1)

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Physical Properties of Metavariscite

Help on Cleavage: Cleavage: {010} Good
Help on Color: Color: Light green.
Help on Density: Density: 2.54
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Metavariscite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2237,KPDmeas= 0.2219,KC= 0.2266
Ncalc = 1.57 - 1.58
Help on Optical Data: Optical Data: Biaxial (+), a=1.551, b=1.558, g=1.582, bire=0.0310, 2V(Calc)=58, 2V(Meas)=55.
 

Calculated Properties of Metavariscite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.55 gm/cc
note: Specific Gravity of Metavariscite =2.52 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0002954932
Boson Index = 0.9997045068
Help on Photoelectric: Photoelectric: PEMetavariscite = 1.49 barns/electron
U=PEMetavariscite x rElectron Density= 3.79 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Metavariscite is Not Radioactive
 

Metavariscite Classification

Help on  Dana Class: Dana Class: 40.04.03.01 (40)Hydrated Phosphates, etc
  (40.04)where A+++ XO4 � x(H2O)
  (40.04.03)Metavariscite group
 
40.04.03.01 Metavariscite AlPO4•2(H2O) P 21/n 2/m
 
40.04.03.02 Phosphosiderite FePO4•2(H2O) P 21/n 2/m
 
40.04.03.03 Kolbeckite ScPO4•2(H2O) P 21/n 2/m
Help on  Strunz Class: Strunz Class: 08.CD.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CD -With only medium-sized cations, RO4:H2O = 1:2
 
08.CD.05 Kolbeckite ScPO4•2(H2O) P 21/n 2/m
 
08.CD.05 Metavariscite AlPO4•2(H2O) P 21/n 2/m
 
08.CD.05 Phosphosiderite FePO4•2(H2O) P 21/n 2/m
 

Other Metavariscite Information

Help on References: References: NAME( Dana8) 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 Metavariscite :
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 Metavariscite Specimen Label here :

Metavariscite

AlPO4•2(H2O)
Dana No: 40.04.03.01 Strunz No: 08.CD.05
Locality:

 

Notes:

 

 
   
 


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