Nickelschneebergite Mineral Data

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General Nickelschneebergite Information

Chemical Formula:

Bi(Ni,Co)2(AsO4)2(OH,H2O)2

Composition:

Molecular Weight = 588.23 gm

Calcium 2.04 % Ca 2.86 % CaO

Iron 1.90 % Fe 2.44 % FeO

Cobalt 6.01 % Co 8.46 % Co₂O₃

Nickel 11.97 % Ni 15.24 % NiO

Bismuth 24.87 % Bi 27.72 % Bi₂O₃

Arsenic 25.47 % As 39.07 % As₂O₅

Hydrogen 0.53 % H 4.75 % H₂O

Oxygen 27.20 % O

______ ______

100.00 % 100.54 % = TOTAL OXIDE

Empirical Formula:

Bi_0.7Ca_0.3Ni_1.2Co_0.6Fe²⁺_0.2(AsO₄)₂(H₂O)_1.1(OH)_0.9

Environment:

Secondary mineral found in the oxidized dump material.Tsumcorite group. Bi-dominant analog of nickel-lotharmeyerite.

IMA Status:

Approved IMA 2003 (Dana # Added)

Locality:

Dump material of the "Am Roten Berg" mining area, about 5 km SW of Schneeberg, Saxony, Germay. Link to MinDat.org Location Data.

Name Origin:

Named as the Ni-dominant analog of schneebergite (Locality).

Synonym:

IMA1999-028

Nickelschneebergite Image

Images:

Nickelschneebergite

Comments: Small crystals of nickelschneebergite.
Location: Roter Berg, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Nickelschneebergite Crystallography

Axial Ratios:

a:b:c =1.4491:1:1.2021

Cell Dimensions:

a = 8.995, b = 6.207, c = 7.462, Z = 2; beta = 115° V = 377.58 Den(Calc)= 5.17

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): 3.196(1)(112), 2.98(0.72)(201), 1.702(0.57)(221,404,51 2.507(0.47)(112), 2.821(0.44)(021), 4.586(0.4)(111),

Forms:

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Forms: ( 1 1 0) ( 2 0 1) ( 1 1 1) ( 1 0 1)

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Crystal Structure:

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Krause W , Bernhardt H J , Effenberger H , Witzke T , European Journal of Mineralogy , 14 (2002) p.115-126, Schneebergite and nickelschneebergite from Schneeberg, Saxony, Germany:, the first Bi-bearing members of the tsumcorite group, Sample: #374, Locality: Schneeberg, Saxony, Germany

Physical Properties of Nickelschneebergite

Color:

Olive green, Brown.

Diaphaneity:

Transparent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Subadamantine

Streak:

pale brown

Optical Properties of Nickelschneebergite

Gladstone-Dale:

CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1844,KC= 0.1871
Ncalc = 1.97

Optical Data:

Biaxial (+), a=1.94, b=1.95, g=1.97, bire=0.0300

Calculated Properties of Nickelschneebergite

Electron Density:

Bulk Density (Electron Density)=4.71 gm/cc
note: Specific Gravity of Nickelschneebergite =5.17 gm/cc.

Fermion Index:

Fermion Index = 0.0019146824
Boson Index = 0.9980853176

Photoelectric:

PE_{Nickelschneebergite}= 465.12 barns/electron
U=PE_{Nickelschneebergite} x rElectron Density=2,192.79 barns/cc.

Radioactivity:

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

Nickelschneebergite Classification

Dana Class:

40.02.09.07 (40)Hydrated Phosphates, etc

(40.02)where A++ (B++)2 (XO4) · x(H2O)

(40.02.09)Helmutwinklerite Subgroup

40.02.09.01 Tsumcorite PbZnFe(AsO4)2•(H2O) C 2/m 2/m

40.02.09.02 Helmutwinklerite PbZn2(AsO4)2•2(H2O) P1 1

40.02.09.03 Thometzekite Pb(Cu,Zn)2(AsO4)2•2(H2O) C 2/m 2/m

40.02.09.04 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m

40.02.09.05 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O) P1 1

40.02.09.06 Schneebergite! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m

40.02.09.07 Nickelschneebergite! Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m

40.02.09.08 Cobalttsumcorite! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m

Strunz Class:

08.CG.15 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.15 Cobaltlotharmeyerite! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Cabalzarite! Ca(Mg,Al,Fe)2(AsO4)2(H2O,OH)2 C 2/m 2/m

08.CG.15 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono

08.CG.15 Mounanaite PbFe2(VO4)2(OH)2 P1 1

08.CG.15 Tsumcorite PbZnFe(AsO4)2•(H2O) C 2/m 2/m

08.CG.15 Thometzekite Pb(Cu,Zn)2(AsO4)2•2(H2O) C 2/m 2/m

08.CG.15 Cobalttsumcorite! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Manganlotharmeyerite! Ca(Mn,Mg,)2(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Nickellotharmeyerite! Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Krettnichite! PbMn2(VO4)2(OH)2 C 2/m 2/m

08.CG.15 Schneebergite! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m

08.CG.15 Nickelschneebergite! Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m

Other Nickelschneebergite Information

References:

NAME( AmMin, Vol 88, p 253) PHYS. PROP.(AmMin, Vol 88, p 253) OPTIC PROP.(AmMin, Vol 88, p 253)

See Also:

Links to other databases for Nickelschneebergite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Nickelschneebergite

Bi(Ni,Co)2(AsO4)2(OH,H2O)2
Dana No: 40.02.09.07 Strunz No: 08.CG.15
Locality:

Notes: