Pottsite Mineral Data

General Pottsite Information

Chemical Formula:

PbBiH(VO4)2•2(H2O)

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

Empirical Formula:

PbBiH(VO₄)₂•2(H₂O)

Environment:

Oxide zone of a tungsten mine.

IMA Status:

Approved IMA 1988

Locality:

Potts, Lander Coundy, Nevada. USA. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Pottsite

Pottsite Image

Images:

Pottsite

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

Axial Ratios:

a:c = 1:1.13984

Cell Dimensions:

a = 11.084, c = 12.634, Z = 10; V = 1,552.15 Den(Calc)= 7.31

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/I_o): 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

Cleavage:

None

Color:

Bright yellow.

Density:

Diaphaneity:

Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Pyramidal - Crystals are shaped like pyramids.

Hardness:

3.5 - Copper Penny

Luster:

Adamantine

Streak:

light yellow

Optical Properties of Pottsite

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

Optical Data:

Uniaxial (-), e=2.3, w=2.4, bire=0.1000.

Calculated Properties of Pottsite

Electron Density:

Bulk Density (Electron Density)=6.07 gm/cc
note: Specific Gravity of Pottsite =7.00 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_Pottsite=1,108.57 barns/electron
U=PE_Pottsite x rElectron Density=6,725.12 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pottsite is Not Radioactive

Pottsite Classification

Dana Class:

40.01.04.01 (40)Hydrated Phosphates, etc

(40.01)where A++ B++ (XO4) ï¿½ x(H2O)

(40.01.04)Dana Group

40.01.04.01 Pottsite PbBiH(VO4)2•2(H2O) I 4₁22 4 2 2

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

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Am.Min.,Vol.74,p503,1989)

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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Print or Cut-and-Paste your Pottsite Specimen Label here :

Pottsite

PbBiH(VO4)2•2(H2O)
Dana No: 40.01.04.01 Strunz No: 08.CG.25
Locality:

Notes:

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