Mineralogy Database

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 - Pinacoidal H-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),
 

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:

 

 
   
 


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