Nickeltalmessite Mineral Data (original) (raw)

General Nickeltalmessite Information

Help on Chemical Formula: Chemical Formula:

Ca2Ni(AsO4)2•2H2O

Help on Composition: Composition:

Molecular Weight = 452.71 gm

Calcium 17.71 % Ca 24.77 % CaO

Nickel 12.96 % Ni 16.50 % NiO

Arsenic 33.10 % As 50.77 % As2O5

Hydrogen 0.89 % H 7.96 % H2O

Oxygen 35.34 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Ca2Ni(AsO4)2•2(H2O)

Help on Environment: Environment:

Fairfieldite group

Help on IMA Status: IMA Status:

Proposed IMA 2008 (Dana # Added)

Help on Locality: Locality:

A�t Ahmane mine, Bou Azzer district, Anti-Atlas, Morocco Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Help on Synonym: Synonym:

IMA2008-051

Search for Nickeltalmessite Images

Click Here To Search Images:

Nickeltalmessite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.8271:1:0.786

Help on Cell Dimensions: Cell Dimensions:

a = 5.858, b = 7.082, c = 5.567, Z = 1; alpha = 97.2°, beta = 109.11°, gamma = 109.78° V = 203.73 Den(Calc)= 3.69

Help on Crystal System: Crystal System:

Triclinic - PedialH-M Symbol (1) Space Group: P

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.202(1), 2.772(0.68), 3.099(0.64),2.813(0.6), 3.358(0.58), 3.57(0.43), 1.714(0.39), 5.05(0.27),

Optical Properties of Nickeltalmessite

Help on Optical Data: Optical Data:

NCalc= 1.72 - from Gladstone-Dale relationship (KC = 0.1904) where Ncalc=Dcalc*KC+1

Calculated Properties of Nickeltalmessite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.66 gm/cc
note: Specific Gravity of Nickeltalmessite =3.80 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0018749314
Boson Index = 0.9981250686

Help on Photoelectric: Photoelectric:

PENickeltalmessite = 29.75 barns/electron
U=PENickeltalmessite x rElectron Density= 108.87 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nickeltalmessite is Not Radioactive

Nickeltalmessite Classification

Help on Dana Class: Dana Class:

40.02.02.10 (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.35 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.35 Nickeltalmessite! Ca2Ni(AsO4)2•2H2O P 1

Other Nickeltalmessite Information

Help on See Also: See Also:

Links to other databases for Nickeltalmessite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Nickeltalmessite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Nickeltalmessite :

A Bijoux Google Search for Nickeltalmessite
Adam's Minerals Google Search for Nickeltalmessite
Cape Minerals Google Search for Nickeltalmessite
Dakota Matrix Minerals Google Search for Nickeltalmessite
Excalibur Mineral Corp. Google Search for Nickeltalmessite
Exceptional Minerals Google Search for Nickeltalmessite
John Betts Fine Minerals Search for Nickeltalmessite
McDougall Minerals Google Search for Nickeltalmessite
Mineral News Website Link
Rock and Mineral Shows Google Search for Nickeltalmessite
Weinrich Minerals, Inc. Google Search for Nickeltalmessite

Ask about Nickeltalmessite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

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

Nickeltalmessite

Ca2Ni(AsO4)2•2H2O
Dana No: 40.02.02.10 Strunz No: 08.CG.35
Locality:

Notes: