Collinsite  Mineral Data

Collinsite Mineral Data

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General Collinsite Information

Help on Chemical  Formula: Chemical Formula: Ca2(Mg,Fe++)(PO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 338.32 gm
   Calcium     23.69 %  Ca   33.15 % CaO
   Magnesium    5.39 %  Mg    8.93 % MgO
   Iron         4.13 %  Fe    5.31 % FeO
   Phosphorus  18.31 %  P    41.96 % P2O5
   Hydrogen     1.19 %  H    10.65 % H2O
   Oxygen      47.29 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Mg0.75Fe2+0.25(PO4)2•2(H2O)
Help on Environment: Environment: Secondary weathering product typically incrusting other minerals.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1927
Help on Locality: Locality: Francois Lake, south of Babine Lake, Coast district, British Columbia, and as large crystals from the Big Fish River–Rapid Creek area, Yukon Territory, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for William Henry Collins (1878-1937), formerly Director of the Geological Survey of Canada.
Help on Name Pronunciation: Name Pronunciation: Collinsite + Pronunciation Say COLLINSITE
Help on Synonym: Synonym: ICSD 4258
  PDF 26-1063
 

Collinsite Image

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Collinsite

Comments: Half nodule of nearly pure collinsite. The center of the specimen is a small piece of volcanic rock surrounded by collinsite.
Location: Francois Lake, British Columbia, Canada. Scale: 7 x 5.5 cm.
© John Veevaert

Collinsite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8457:1:0.8025
Help on Cell Dimensions: Cell Dimensions: a = 5.734, b = 6.78, c = 5.441, Z = 1; alpha = 97.29°, beta = 108.56°, gamma = 107.28° V = 189.93 Den(Calc)= 2.96
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.04(1), 2.682(0.9), 2.713(0.8),
Click Here for Large Collinsite Structure Window Crystal Structure:

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Help on Above


Brotherton P D , Maslen E N , Pryce M W , White A H , Australian Journal of Chemistry , 27 (1974) p.653-656, Crystal structure of collinsite

 

Physical Properties of Collinsite

Help on Cleavage: Cleavage: {001} Perfect, {010} Perfect
Help on Color: Color: Colorless, White, Light brown.
Help on Density: Density: 2.95
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: 3-3.5 - Calcite-Copper Penny
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Silky
Help on Streak: Streak: white
 

Optical Properties of Collinsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.037 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2124,KPDmeas= 0.2182,KC= 0.2105
Ncalc = 1.62 - 1.64
Help on Optical Data: Optical Data: Biaxial (+), a=1.632, b=1.642, g=1.657, bire=0.0250
 

Calculated Properties of Collinsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.04 gm/cc
note: Specific Gravity of Collinsite =3.03 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0068115336
Boson Index = 0.9931884664
Help on Photoelectric: Photoelectric: PECollinsite = 5.11 barns/electron
U=PECollinsite x rElectron Density= 15.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Collinsite is Not Radioactive
 

Collinsite Classification

Help on  Dana Class: Dana Class: 40.02.02.03 (40)Hydrated Phosphates, etc
  (40.02)where A++ (B++)2 (XO4) · x(H2O)
  (40.02.02)Fairfieldite Subgroup (Triclinic: P-1¯)
 
40.02.02.01 Fairfieldite Ca2(Mn,Fe)(PO4)2•2(H2O) P1 1
 
40.02.02.02 Messelite Ca2(Fe,Mn)(PO4)2•2(H2O) P1 1
 
40.02.02.03 Collinsite Ca2(Mg,Fe)(PO4)2•2(H2O) P1 1
 
40.02.02.04 Cassidyite Ca2(Ni,Mg)(PO4)2•2(H2O) P1 1
 
40.02.02.05 Talmessite Ca2Mg(AsO4)2•2(H2O) P1 1
 
40.02.02.06 Gaitite Ca2Zn(AsO4)2•2(H2O) P1 1
 
40.02.02.07 Roselite-beta Ca2(Co,Mg)(AsO4)2•2(H2O) P 1 or P1 Tri
 
40.02.02.08 Parabrandtite Ca2Mn(AsO4)•2(H2O) P1,P 1 Tri
 
40.02.02.09 Hillite! Ca2(Zn,Mg)[PO4]2•2(H2O) P1 1
 
40.02.02.10 Nickeltalmessite! Ca2Ni(AsO4)2•2H2O P 1
Help on  Strunz Class: Strunz Class: 08.CG.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CG -With large and medium-sized cations, RO4:H2O = 1:1
 
08.CG.05 Collinsite Ca2(Mg,Fe)(PO4)2•2(H2O) P1 1
 
08.CG.05 Gaitite Ca2Zn(AsO4)2•2(H2O) P1 1
 
08.CG.05 Cassidyite Ca2(Ni,Mg)(PO4)2•2(H2O) P1 1
 
08.CG.05 Fairfieldite Ca2(Mn,Fe)(PO4)2•2(H2O) P1 1
 
08.CG.05 Messelite Ca2(Fe,Mn)(PO4)2•2(H2O) P1 1
 
08.CG.05 Parabrandtite Ca2Mn(AsO4)•2(H2O) P1,P 1 Tri
 
08.CG.05 Uranophane-beta Ca[(UO2)SiO3(OH)]2•(H2O) P 21/a 2/m
 
08.CG.05 Talmessite Ca2Mg(AsO4)2•2(H2O) P1 1
 
08.CG.05 Hillite! Ca2(Zn,Mg)[PO4]2•2(H2O) P1 1
 

Other Collinsite 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 Collinsite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
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
16 - WWW-MINCRYST

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

Collinsite

Ca2(Mg,Fe++)(PO4)2•2(H2O)
Dana No: 40.02.02.03 Strunz No: 08.CG.05
Locality:

 

Notes: