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Pottsite Mineral Data

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General Pottsite Information

Help on Chemical  Formula: Chemical Formula: PbBiH(VO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 683.10 gm
   Vanadium  14.91 %  V    26.63 % V2O5
   Bismuth   30.59 %  Bi   34.11 % Bi2O3
   Hydrogen   0.74 %  H     6.59 % H2O
   Lead      30.33 %  Pb   32.67 % PbO
   Oxygen    23.42 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbBiH(VO4)2•2(H2O)
Help on Environment: Environment: Oxide zone of a tungsten mine.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Potts, Lander Coundy, Nevada. USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Pottsite Say POTTSITE

Pottsite Image

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Comments: Sub-mm, bright yellow to orange pottsite crystals form coating on one side of specimen.
Location: Linka Mine, Potts, Lander County, Nevada, USA. Scale: 3.5 x 4 cm.
© John Veevaert

Pottsite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.13984
Help on Cell Dimensions: Cell Dimensions: a = 11.084, c = 12.634, Z = 10; V = 1,552.15 Den(Calc)= 7.31
Help on Crystal System: Crystal System: Tetragonal - Trapezohedral H-M Symbol (4 2 2) Space Group: I 4122
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.06(1), 4.62(0.9), 2.48(0.4),3.21(0.4), 1.952(0.3), 2.18(0.3), 2.25(0.3), 4.17(0.3),

Physical Properties of Pottsite

Help on Cleavage: Cleavage: None
Help on Color: Color: Bright yellow.
Help on Density: Density: 7
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Pyramidal - Crystals are shaped like pyramids.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Adamantine
Help on Streak: Streak: light yellow

Optical Properties of Pottsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.075 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.115 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1847,KPDmeas= 0.1929,KC= 0.2086
Ncalc = 2.46 - 2.52
Help on Optical Data: Optical Data: Uniaxial (-), e=2.3, w=2.4, bire=0.1000.

Calculated Properties of Pottsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.07 gm/cc
note: Specific Gravity of Pottsite =7.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PEPottsite =1,108.57 barns/electron
U=PEPottsite x rElectron Density=6,725.12 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pottsite is Not Radioactive

Pottsite Classification

Help on  Dana Class: Dana Class: (40)Hydrated Phosphates, etc
  (40.01)where A++ B++ (XO4) � x(H2O)
  (40.01.04)Dana Group Pottsite PbBiH(VO4)2•2(H2O) I 4122 4 2 2
Help on  Strunz Class: Strunz Class: 08.CG.25 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.25 Pottsite PbBiH(VO4)2•2(H2O) I 4122 4 2 2

Other Pottsite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Am.Min.,Vol.74,p503,1989)
Help on See Also: See Also: Links to other databases for Pottsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.CG.25





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