Paulmooreite Mineral Data

General Paulmooreite Information

Chemical Formula:

Pb2As+++2O5

Composition:

Molecular Weight = 644.24 gm

Arsenic 23.26 % As 30.71 % As₂O₃

Lead 64.32 % Pb 69.29 % PbO

Oxygen 12.42 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb₂As₂O₅

Environment:

Secondary mineral in a metamorphosed Fe–Mn orebody

IMA Status:

Approved IMA 1979

Locality:

Langban, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Paul Brian Moore (1940- ), American mineralogist and structural crystallographer, University of Chicago, Chicago, Illinois, USA.

Name Pronunciation:

Paulmooreite + Pronunciation

Synonym:

ICSD 100229

PDF 33-735

Paulmooreite Image

Images:

Paulmooreite

Comments: Scanning electron photomicrograph of paulmooreite. AmMin v64:352.
Location: Langban,Varmland, Sweden. Scale: 150X Magnification.
© American Mineralogist

Paulmooreite Crystallography

Axial Ratios:

a:b:c =1.5136:1:2.4064

Cell Dimensions:

a = 8.558, b = 5.654, c = 13.606, Z = 4; beta = 108.88° V = 622.93 Den(Calc)= 6.87

Crystal System:

Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.3(1), 2.761(0.8), 2.905(0.8),

Crystal Structure:

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Araki T , Moore P B , Brunton G D , American Mineralogist , 65 (1980) p.340-345, The crystal structure of paulmooreite, Pb2[As2O5]: dimeric arsenite groups

Physical Properties of Paulmooreite

Cleavage:

{001} Perfect

Color:

Colorless, Light orange.

Density:

6.95

Diaphaneity:

Transparent

Hardness:

3 - Calcite

Luster:

Adamantine

Streak:

white

Optical Properties of Paulmooreite

Optical Data:

NCalc= 2.13 - from Gladstone-Dale relationship (KC = 0.1643) where Ncalc=Dcalc*KC+1
NCalc= 2.14 - from Gladstone-Dale relationship (KC = 0.1643) where Ncalc=Dmeas*KC+1

Calculated Properties of Paulmooreite

Electron Density:

Bulk Density (Electron Density)=5.76 gm/cc
note: Specific Gravity of Paulmooreite =6.87 gm/cc.

Fermion Index:

Fermion Index = 0.14
Boson Index = 0.86

Photoelectric:

PE_Paulmooreite=1,195.98 barns/electron
U=PE_Paulmooreite x rElectron Density=6,886.92 barns/cc.

Radioactivity:

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

Paulmooreite Classification

Dana Class:

45.01.08.01 (45)Acid and normal Antimonites, Arsenites and Phosphites

(45.01)with miscellaneous formulae

(45.01.08)Dana Group

45.01.08.01 Paulmooreite Pb2As2O5 P 2₁ 2

Strunz Class:

04.JA.50 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JA -Arsenites, antimonites, bismuthites; without additional anions, without H2O

04.JA.50 Paulmooreite Pb2As2O5 P 2₁ 2

Other Paulmooreite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Paulmooreite :
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
15 - WWW-MINCRYST

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

Paulmooreite

Pb2As+++2O5
Dana No: 45.01.08.01 Strunz No: 04.JA.50
Locality:

Notes: