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Schneebergite Mineral Data

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General Schneebergite Information

Help on Chemical  Formula: Chemical Formula: Bi(Co,Ni)2(AsO4)2(OH,H2O)2
Help on Composition: Composition: 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
Help on Empirical Formula: Empirical Formula: Bi0.7Ca0.3Co1.1Ni0.8Fe2+0.2(AsO4)2(OH)1.1(H2O)0.9
Help on Environment: Environment: Secondary mineral found in the oxidized dump material. Tsumcorite group, Bi-dominant analog of cobaltlotharmeyerite.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Dump material of the "Am Roten Berg" mining area, about 5 km SW of Schneeberg, Saxony, Germay. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA1999-027
 

Schneebergite Image

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  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

Schneebergite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4498:1:1.1978
Help on Cell Dimensions: Cell Dimensions: a = 9.005, b = 6.211, c = 7.44, Z = 2; beta = 115.19° V = 376.55 Den(Calc)= 5.24
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: 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),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

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I - Indicies
<space> - Start-Stop Rotation
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Help on Above

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

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Physical Properties of Schneebergite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown, Beige.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Subadamantine
Help on Streak: Streak: pale brown
 

Optical Properties of Schneebergite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.083 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1819,KC= 0.1984
Ncalc = 2.04
Help on Optical Data: Optical Data: Biaxial (+), a=1.93, b=1.95, g=1.98, bire=0.0500
 

Calculated Properties of Schneebergite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.77 gm/cc
note: Specific Gravity of Schneebergite =5.24 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.001449388
Boson Index = 0.998550612
Help on Photoelectric: Photoelectric: PESchneebergite = 461.60 barns/electron
U=PESchneebergite x rElectron Density=2,201.28 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Schneebergite is Not Radioactive
 

Schneebergite Classification

Help on  Dana Class: Dana Class: 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
Help on  Strunz Class: 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 Schneebergite Information

Help on References: References: NAME( AmMin, Vol 88, p 253) PHYS. PROP.(AmMin, Vol 88, p 253) OPTIC PROP.(AmMin, Vol 88, p 253)
Help on See Also: See Also: 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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Print or Cut-and-Paste your Schneebergite Specimen Label here :

Schneebergite

Bi(Co,Ni)2(AsO4)2(OH,H2O)2
Dana No: 40.02.09.06 Strunz No: 08.CG.15
Locality:

 

Notes:

 

 
   
 


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