Pucherite Mineral Data

Pucherite Mineral Data
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General Pucherite Information

Help on Chemical Formula: Chemical Formula: BiVO4
Help on Composition: Composition: Molecular Weight = 323.92 gm
   Vanadium  15.73 %  V    28.07 % V2O5
   Bismuth   64.52 %  Bi   71.93 % Bi2O3
   Oxygen    19.76 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi(VO4)
Help on Environment: Environment: Alteration product of native bismuth associated with bismutite and beyerite. One of 3 BiVO4 polymorphs (clinobisvanite and dreyerite).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1871
Help on Locality: Locality: Oxidized portions of Bi-Ag-U-Ca veins in the Pucher shaft of the Wolfgang Mine, Schneeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Pucherite + Pronunciation Say PUCHERITE
Help on Synonym: Synonym: ICSD 70118
  PDF 12-293
 

Pucherite Image

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Pucherite   Schumacherite

Comments: Brown crystals of pucherite with yellow schumacherite on matrix.
Location: Pucher Shaft, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Pucherite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0649:1:2.3758
Help on Cell Dimensions: Cell Dimensions: a = 5.38, b = 5.052, c = 12.003, Z = 4; V = 326.24 Den(Calc)= 6.59
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.499(1), 2.702(1), 4.644(0.55),3.96(0.5), 1.934(0.4), 1.99(0.4), 2.13(0.4), 2.99(0.4), 2.7(0.1),
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Qurashi M M , Barnes W H , American Mineralogist , 37 (1952) p.423-426, A preliminary structure for pucherite, BiVO4

View Additional jPOWD Structure files for Pucherite
[1] [2]
 

Physical Properties of Pucherite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Yellow brown, Dark brown red, Pink brown, Reddish brown.
Help on Density: Density: 6.25
Help on Diaphaneity: Diaphaneity: Transparent to Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Pulverulent - Forms a loose, poorly-coherent powdery mass.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Adamantine
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: yellow
 

Optical Properties of Pucherite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.147 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.088 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2236,KPDmeas= 0.2357,KC= 0.2055
Ncalc = 2.28 - 2.35
Help on Optical Data: Optical Data: Biaxial (-), a=2.41, b=2.5, g=2.51, bire=0.1000, 2V(Calc)=34, 2V(Meas)=19. Dispersion marked to extreme, r < v.
Help on Pleochroism (x): Pleochroism (x): yellow brown.
Help on Pleochroism (y): Pleochroism (y): yellow brown.
Help on Pleochroism (z): Pleochroism (z): yellow brown.
 

Calculated Properties of Pucherite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.62 gm/cc
note: Specific Gravity of Pucherite =6.59 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0004886448
Boson Index = 0.9995113552
Help on Photoelectric: Photoelectric: PEPucherite =1,221.91 barns/electron
U=PEPucherite x rElectron Density=6,861.17 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pucherite is Not Radioactive
 

Pucherite Classification
Help on Dana Class: Dana Class: 38.04.06.01 (38)Anhydrous Phosphates, etc
  (38.04)A+ XO4
  (38.04.06)Dana Group
 
38.04.06.01 Pucherite BiVO4 Pnca 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 08.AD.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AD -With only large cations
 
08.AD.40 Pucherite BiVO4 Pnca 2/m 2/m 2/m
 

Other Pucherite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Pucherite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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Pucherite

BiVO4
Dana No: 38.04.06.01 Strunz No: 08.AD.40
Locality:

 

Notes: