Nickelbischofite Mineral Data

Nickelbischofite Mineral Data +

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General Nickelbischofite Information

Chemical Formula:

NiCl2·6(H2O)

Composition:

Molecular Weight = 237.69 gm

Nickel 24.69 % Ni 31.42 % NiO

Hydrogen 5.09 % H 45.48 % H₂O

Chlorine 29.83 % Cl 29.83 % Cl

- % Cl -6.73 % -O=Cl₂

Oxygen 40.39 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NiCl₂·6(H₂O)

IMA Status:

Approved IMA 1979

Locality:

Link to MinDat.org Location Data.

Name Origin:

Nickel analog of bischofite.

Synonym:

ICSD 64878

IMA1978-056

PDF 25-1044

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Nickelbischofite Crystallography

Axial Ratios:

a:b:c =1.4579:1:0.9358

Cell Dimensions:

a = 10.318, b = 7.077, c = 6.623, Z = 2; beta = 122.37° V = 408.47 Den(Calc)= 1.93

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 5.59(1), 2.924(0.4), 5.49(0.4),

Physical Properties of Nickelbischofite

Cleavage:

[001] Perfect

Color:

Green, Emerald green.

Density:

1.929

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

1.5 - Between Talc and Gypsum

Luster:

Vitreous (Glassy)

Streak:

greenish white

Optical Properties of Nickelbischofite

Gladstone-Dale:

CI meas= -0.051 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.05 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3195,KPDmeas= 0.3197,KC= 0.3042

Optical Data:

Biaxial (+), a=1.589, b=1.617, g=1.644, bire=0.0550, 2V(Calc)=86, 2V(Meas)=87.

Calculated Properties of Nickelbischofite

Electron Density:

r_electron=1.98 gm/cc
note: r_{Nickelbischofite}=1.93 gm/cc.

Fermion Index

Fermion Index = 0.00299
Boson Index = 0.99701

Photoelectric:

PE_{Nickelbischofite}= 11.35 barns/electron
U=PE_{Nickelbischofite} x r_electron= 22.49 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nickelbischofite is Not Radioactive

Nickelbischofite Classification

Dana Class:

9.2.9.2 (9)Anhydrous and Hydrated Halides

(9.2)where A (X)2

(9.2.9)Dana Group

9.2.9.1 Bischofite MgCl2·6(H2O) C 2/m 2/m

9.2.9.2 Nickelbischofite NiCl2·6(H2O) C 2/m 2/m

Strunz Class:

III/A.12-40 III - Halogenides

III/A - Simple Halogenides, with water Metal : Halogen = 1 : 1 to 1 : 3

III/A.12 - Hydrohalite - Antarcticite series

III/A.12-10 Hydrohalite NaCl·2(H2O) P 2₁/c 2/m

III/A.12-20 Eriochalcite CuCl2·2(H2O) Pbmn 2/m 2/m 2/m

III/A.12-30 Bischofite MgCl2·6(H2O) C 2/m 2/m

III/A.12-40 Nickelbischofite NiCl2·6(H2O) C 2/m 2/m

III/A.12-50 Rokuhnite FeCl2·(H2O) C 2/m 2/m

III/A.12-70 Sinjarite CaCl2·2(H2O) Unk. Tetra

III/A.12-80 Antarcticite CaCl2·6(H2O) P 3₂1 3 2

Other Nickelbischofite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Nickelbischofite :
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 -École des Mines de Paris

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

Nickelbischofite

NiCl2·6(H2O)
Dana No: 9.2.9.2 Strunz No: III/A.12-40
Locality:

Notes: