Mineralogy Database

Zincroselite Mineral Data

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General Zincroselite Information

Help on Chemical  Formula: Chemical Formula: Ca2Zn(AsO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 459.41 gm
   Calcium   17.45 %  Ca   24.41 % CaO
   Zinc      14.23 %  Zn   17.72 % ZnO
   Arsenic   32.62 %  As   50.03 % As2O5
   Hydrogen   0.88 %  H     7.84 % H2O
   Oxygen    34.83 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Zn(AsO4)2•2(H2O)
Help on Environment: Environment: Tsumeb, Namibia.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Secondary mineral in an oxidized zone of a dolostone-hosted hydrothermal polymetallic ore deposit. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its content of zinc and relation to roselite.
Help on Name Pronunciation: Name Pronunciation: Zincroselite + Pronunciation Say ZINCROSELITE
 

Zincroselite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4524:1:0.4378
Help on Cell Dimensions: Cell Dimensions: a = 5.832, b = 12.889, c = 5.644, Z = 2; beta = 107.72° V = 404.12 Den(Calc)= 3.78
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3(1), 3.22(0.8), 5.1(0.6),
 

Physical Properties of Zincroselite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Colorless, White.
Help on Density: Density: 3.75
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 3 - Calcite
Help on Streak: Streak: white
 

Optical Properties of Zincroselite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1881,KPDmeas= 0.1896,KC= 0.187
Ncalc = 1.7 - 1.71
Help on Optical Data: Optical Data: Biaxial (+), a=1.703, b=1.71, g=1.72, bire=0.0170, 2V(Calc)=82, 2V(Meas)=50-57.
 

Calculated Properties of Zincroselite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.62 gm/cc
note: Specific Gravity of Zincroselite =3.78 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0062396803
Boson Index = 0.9937603197
Help on Photoelectric: Photoelectric: PEZincroselite = 31.40 barns/electron
U=PEZincroselite x rElectron Density= 113.69 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincroselite is Not Radioactive
 

Zincroselite Classification

Help on  Dana Class: Dana Class: 40.02.03.03 (40)Hydrated Phosphates, etc
  (40.02)where A++ (B++)2 (XO4) � x(H2O)
  (40.02.03)Roselite Subgroup (Monoclinic: P21/c)
 
40.02.03.01 Roselite Ca2(Co,Mg)(AsO4)2•2(H2O) P 21/c 2/m
 
40.02.03.02 Brandtite Ca2(Mn,Mg)(AsO4)2•2(H2O) P 21/c 2/m
 
40.02.03.03 Zincroselite Ca2Zn(AsO4)2•2(H2O) P 21/c 2/m
 
40.02.03.04 Wendwilsonite Ca2(Mg,Co)(AsO4)2•2(H2O) P 21/c 2/m
 
40.02.03.05 Manganlotharmeyerite! Ca(Mn,Mg,)2(AsO4)2(OH,H2O)2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.CG.10 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.10 Brandtite Ca2(Mn,Mg)(AsO4)2•2(H2O) P 21/c 2/m
 
08.CG.10 Roselite Ca2(Co,Mg)(AsO4)2•2(H2O) P 21/c 2/m
 
08.CG.10 Roselite-beta Ca2(Co,Mg)(AsO4)2•2(H2O) P 1 or P1 Tri
 
08.CG.10 Zincroselite Ca2Zn(AsO4)2•2(H2O) P 21/c 2/m
 
08.CG.10 Wendwilsonite Ca2(Mg,Co)(AsO4)2•2(H2O) P 21/c 2/m
 

Other Zincroselite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.73,p932,1988) OPTIC PROP.(Am.Min.,Vol.73,p932,1988)
Help on See Also: See Also: Links to other databases for Zincroselite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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

Zincroselite

Ca2Zn(AsO4)2•2(H2O)
Dana No: 40.02.03.03 Strunz No: 08.CG.10
Locality:

 

Notes:

 

 
   
 


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