Schneebergite Mineral Data (original) (raw)
General Schneebergite Information
Bi(Co,Ni)2(AsO4)2(OH,H2O)2
Molecular Weight = 594.02 gm
Calcium 2.02 % Ca 2.83 % CaO
Iron 1.88 % Fe 2.42 % FeO
Cobalt 10.91 % Co 15.36 % Co2O3
Nickel 7.90 % Ni 10.06 % NiO
Bismuth 24.63 % Bi 27.45 % Bi2O3
Arsenic 25.23 % As 38.69 % As2O5
Hydrogen 0.49 % H 4.40 % H2O
Oxygen 26.93 % O
______ ______
100.00 % 101.21 % = TOTAL OXIDE
Bi0.7Ca0.3Co1.1Ni0.8Fe2+0.2(AsO4)2(OH)1.1(H2O)0.9
Secondary mineral found in the oxidized dump material. Tsumcorite group, Bi-dominant analog of cobaltlotharmeyerite.
Approved IMA 2002 (Dana # Added)
Dump material of the "Am Roten Berg" mining area, about 5 km SW of Schneeberg, Saxony, Germay. Link to MinDat.org Location Data.
Named for the locality.
IMA1999-027
Schneebergite Image
Schneebergite Comments: Prismatic, acicular crystals of schneebergite. Location: Roter Berg, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany.Scale: Picture size 1.7 mm. © Thomas Witzke / Abraxas-Verlag |
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Schneebergite Crystallography
a:b:c =1.4498:1:1.1978
a = 9.005, b = 6.211, c = 7.44, Z = 2; beta = 115.19° V = 376.55 Den(Calc)= 5.24
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
By Intensity(I/Io): 3.193(1)(112), 2.972(0.92)(201), 2.498(0.62)(112,310),2.82(0.61)(021), 4.589(0.61)(111), 2.702(0.57)(311), 2.528(0.42), 1.869(0.37), 4.418(0.33),
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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: #358, Locality: Schneeberg, Saxony, Germany | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Schneebergite
None
Brown, Beige.
Transparent
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Microscopic Crystals - Crystals visible only with microscopes.
Tabular - Form dimensions are thin in one direction.
4-4.5 - Between Fluorite and Apatite
Subadamantine
pale brown
Optical Properties of Schneebergite
CI calc= 0.083 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1819,KC= 0.1984
Ncalc = 2.04
Biaxial (+), a=1.93, b=1.95, g=1.98, bire=0.0500
Calculated Properties of Schneebergite
Bulk Density (Electron Density)=4.77 gm/cc
note: Specific Gravity of Schneebergite =5.24 gm/cc.
Fermion Index = 0.001449388
Boson Index = 0.998550612
PESchneebergite = 461.60 barns/electron
U=PESchneebergite x rElectron Density=2,201.28 barns/cc.
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Schneebergite is Not Radioactive
Schneebergite Classification
40.02.09.06 (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
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 Schneebergite Information
NAME( AmMin, Vol 88, p 253) PHYS. PROP.(AmMin, Vol 88, p 253) OPTIC PROP.(AmMin, Vol 88, p 253)
Links to other databases for Schneebergite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Schneebergite
Bi(Co,Ni)2(AsO4)2(OH,H2O)2
Dana No: 40.02.09.06 Strunz No: 08.CG.15
Locality:
Notes: