General Nickelschneebergite Information
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Chemical Formula: |
Bi(Ni,Co)2(AsO4)2(OH,H2O)2 |
Composition: |
Molecular Weight = 588.23 gm |
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Calcium 2.04 % Ca 2.86 % CaO |
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Iron 1.90 % Fe 2.44 % FeO |
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Cobalt 6.01 % Co 8.46 % Co2O3 |
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Nickel 11.97 % Ni 15.24 % NiO |
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Bismuth 24.87 % Bi 27.72 % Bi2O3 |
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Arsenic 25.47 % As 39.07 % As2O5 |
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Hydrogen 0.53 % H 4.75 % H2O |
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Oxygen 27.20 % O |
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______ ______ |
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100.00 % 100.54 % = TOTAL OXIDE |
Empirical Formula: |
Bi0.7Ca0.3Ni1.2Co0.6Fe2+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 |
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Nickelschneebergite Image |
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Nickelschneebergite Crystallography
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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 |
X Ray Diffraction: |
By Intensity(I/Io): 3.196(1)(112), 2.98(0.72)(201), 1.702(0.57)(221,404,512.507(0.47)(112), 2.821(0.44)(021), 4.586(0.4)(111), |
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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
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Physical Properties of Nickelschneebergite
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Color: |
Olive green, Brown. |
Diaphaniety: |
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 |
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Optical Properties of Nickelschneebergite
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Gladstone-Dale: |
CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1844,KC= 0.1871 |
Optical Data: |
Biaxial (+), a=1.94, b=1.95, g=1.97, bire=0.0300 |
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Calculated Properties of Nickelschneebergite
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Electron Density: |
relectron=4.71 gm/cc note: rNickelschneebergite =5.17 gm/cc. |
Fermion Index |
Fermion Index = 0.00191 Boson Index = 0.99809 |
Photoelectric: |
PENickelschneebergite = 465.12 barns/electron U=PENickelschneebergite x relectron=2,192.79 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nickelschneebergite is Not Radioactive |
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Nickelschneebergite Classification
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Dana Class: |
40.2.9.7 (40)Hydrated Phosphates, etc |
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(40.2)where A++ (B++)2 (XO4) · x(H2O) |
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(40.2.9)Helmutwinklerite Subgroup |
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40.2.9.1 Tsumcorite PbZnFe(AsO4)2·(H2O) C 2/m 2/m |
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40.2.9.2 Helmutwinklerite PbZn2(AsO4)2·2(H2O) P1 1 |
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40.2.9.3 Thometzekite Pb(Cu,Zn)2(AsO4)2·2(H2O) C 2/m 2/m |
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40.2.9.4 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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40.2.9.5 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2·2(H2O) P1 1 |
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40.2.9.6 Schneebergite! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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40.2.9.7 Nickelschneebergite ! Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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40.2.9.8 Cobalttsumcorite! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
Strunz Class: |
VII/C.31-04 VII - Phosphates, Arsenates and Vanadates |
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VII/C - Water-bearing phosphates without unfamiliar anions, cations of medium and big size: Fe, Mn, Zn, Mg and Ca, (NH4)1+ |
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VII/C.31 - Mawbyite - Gartrellite series |
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VII/C.31-02 Schneebergite! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-04 Nickelschneebergite Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-05 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-06 Cabalzarite! Ca(Mg,Al,Fe)2(AsO4)2(H2O,OH)2 C 2/m 2/m |
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VII/C.31-08 Nickellotharmeyerite! Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-10 Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-20 Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono |
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VII/C.31-30 Manganlotharmeyerite! Ca(Mn,Mg,)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-35 Cobaltlotharmeyerite! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-36 Cobalttsumcorite! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m |
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VII/C.31-40 Thometzekite Pb(Cu,Zn)2(AsO4)2·2(H2O) C 2/m 2/m |
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VII/C.31-50 Tsumcorite PbZnFe(AsO4)2·(H2O) C 2/m 2/m |
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VII/C.31-74 Krettnichite! PbMn2(VO4)2(OH)2 C 2/m 2/m |
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VII/C.31-78 Lukrahnite! Ca(Cu,Zn)(Fe,Zn)(AsO4)2(OH,H2O)2 P1 1 |
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VII/C.31-80 Phosphogartrellite! PbCuFe(PO4)2(OH,H2O)2 P1 1 |
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VII/C.31-90 Gartrellite Pb(Cu,Fe)2(AsO4,SO4)2(CO3,H2O)0.7 P1,P 1 Tri |
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VII/C.31-92 Zincgartrellite! Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2 P1 1 |
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VII/C.31-98 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2·2(H2O) P1 1 |
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VII/C.31-100 Helmutwinklerite PbZn2(AsO4)2·2(H2O) P1 1 |
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Other Nickelschneebergite Information
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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 (UofA)
6 -MinDAT
7 -MinMax(Deutsch)
8 -MinMax(English)
9 -Mineralienatlas (Deutsch)
10 -QUT Mineral Atlas
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Print or Cut-and-Paste your Nickelschneebergite Specimen Label here :
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Nickelschneebergite
Bi(Ni,Co)2(AsO4)2(OH,H2O)2
Dana No: 40.2.9.7 Strunz No: VII/C.31-04
Locality:
Notes:
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