Nickelaustinite Mineral Data

Nickelaustinite Mineral Data +

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General Nickelaustinite Information

Chemical Formula:

Ca(Ni,Zn)(AsO4)(OH)

Composition:

Molecular Weight = 256.37 gm

Calcium 15.63 % Ca 21.87 % CaO

Zinc 6.38 % Zn 7.94 % ZnO

Nickel 17.17 % Ni 21.85 % NiO

Arsenic 29.22 % As 44.83 % As₂O₅

Hydrogen 0.39 % H 3.51 % H₂O

Oxygen 31.20 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaNi_0.75Zn_0.25(AsO₄)(OH)

IMA Status:

Approved IMA 1987

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 202422

PDF 41-1425

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Nickelaustinite Crystallography

Axial Ratios:

a:b:c =0.8324:1:0.6606

Cell Dimensions:

a = 7.455, b = 8.955, c = 5.916, Z = 4; V = 394.95 Den(Calc)= 4.31

Crystal System:

Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 2₁2₁2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.626(1), 3.151(0.9), 3.769(0.9),

Crystal Structure:

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Cesbron F P , Ginderow D , Giraud R , Pelisson P , Pillard F , The Canadian Mineralogist , 25 (1987) p.401-407, La nickelaustinite Ca(Ni,Zn)(AsO4)(OH): Nouvelle espece minerale du, district cobalto-nickelifere de Bou-Azzer, Maroc, Note: signs changed on y-coordinates of O1 and O2

Physical Properties of Nickelaustinite

Color:

Grass green, Yellow green.

Density:

4.3

Diaphaniety:

Transparent

Hardness:

4 - Fluorite

Luster:

Silky

Streak:

light green

Optical Properties of Nickelaustinite

Gladstone-Dale:

CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1796,KPDmeas= 0.18,KC= 0.1815

Optical Data:

Biaxial (+), a=1.77, g=1.778, bire=0.0080

Calculated Properties of Nickelaustinite

Electron Density:

r_electron=4.11 gm/cc
note: r_{Nickelaustinite}=4.30 gm/cc.

Fermion Index

Fermion Index = 0.00491
Boson Index = 0.99509

Photoelectric:

PE_{Nickelaustinite}= 31.97 barns/electron
U=PE_{Nickelaustinite} x r_electron= 131.36 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nickelaustinite is Not Radioactive

Nickelaustinite Classification

Dana Class:

41.5.1.7 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.5)where (A B)2 (XO4) Zq

(41.5.1)Dana Group

41.5.1.1 Adelite CaMg(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.2 Conichalcite CaCu(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.3 Austinite CaZn(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.4 Duftite-beta PbCu(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.5 Gabrielsonite PbFe(AsO4)(OH) P 2₁m mm2

41.5.1.6 Tangeite CaCu(VO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.7 Nickelaustinite Ca(Ni,Zn)(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.8 Cobaltaustinite CaCo(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.9 Arsendescloizite PbZn(AsO4)(OH) P 2₁2₁2₁ 2 2 2

41.5.1.10 Gottlobite! CaMg(VO4,AsO4)(OH) P 2₁2₁2₁ 2 2 2

Strunz Class:

VII/B.26-20 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.26 - Adelite - Duftite group

VII/B.26-10 Adelite CaMg(AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-15 Gottlobite! CaMg(VO4,AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-20 Nickelaustinite Ca(Ni,Zn)(AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-30 Cobaltaustinite CaCo(AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-40 Austinite CaZn(AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-50 Conichalcite CaCu(AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-60 Tangeite CaCu(VO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-70 Gabrielsonite PbFe(AsO4)(OH) P 2₁m mm2

VII/B.26-80 Duftite-alpha PbCu(AsO4)(OH) P 2₁2₁2₁ 2 2 2

VII/B.26-80* Duftite-beta PbCu(AsO4)(OH) P 2₁2₁2₁ 2 2 2

Other Nickelaustinite Information

References:

PHYS. PROP.(Am.Min.,Vol.73,p930,1988) OPTIC PROP.(Am.Min.,Vol.73,p930,1988)

See Also:

Links to other databases for Nickelaustinite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Nickelaustinite

Ca(Ni,Zn)(AsO4)(OH)
Dana No: 41.5.1.7 Strunz No: VII/B.26-20
Locality:

Notes: