Schultenite Mineral Data

Schultenite Mineral Data
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General Schultenite Information

Help on Chemical Formula: Chemical Formula: PbHAsO4
Help on Composition: Composition: Molecular Weight = 347.13 gm
   Arsenic   21.58 %  As   33.11 % As2O5
   Hydrogen   0.29 %  H     2.59 % H2O
   Lead      59.69 %  Pb   64.30 % PbO
   Oxygen    18.44 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbH(AsO4)
Help on Environment: Environment: Secondary mineral in lead arsenic ores. Used as an insecticide as commercially prepared lead arsenate.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1926
Help on Locality: Locality: Tsumeb, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Baron August Benjamin de Schulten (1856-1912) of Helsingfors and Paris, who prepared and described artificial crystals of the compound.
Help on Name Pronunciation: Name Pronunciation: Schultenite + Pronunciation Say SCHULTENITE
Help on Synonym: Synonym: ICSD 29552
  Lead arsenate
  PDF 29-772
 

Schultenite Image

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Schultenite

Comments: Arrow-shaped crystals of schultenite on matrix.
Location: Gifford Lakes, King County, Washington, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Schultenite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8641:1:0.7188
Help on Cell Dimensions: Cell Dimensions: a = 5.827, b = 6.743, c = 4.847, Z = 2; beta = 95.34° V = 189.62 Den(Calc)= 6.08
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.35(1), 3.13(0.9), 1.95(0.8),
Help on Forms: Forms:

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Forms: ( 0 1 1) ( 1 2 1) ( 0 1 0) ( 1 4 0) ( 1 1 1) ( 1 3 0) ( 0 0 1)

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Wilson C C , Cox P J , Stewart N S , Journal of Crystallographic and Spectroscopic Research , 21 (1991) p.589-593, Structure and disorder in schultenite, lead hydrogen arsenate

 

Physical Properties of Schultenite

Help on Cleavage: Cleavage: {010} Good
Help on Color: Color: Colorless, Pale yellow, White.
Help on Density: Density: 5.943
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: white
 

Optical Properties of Schultenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.053 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.029 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1522,KPDmeas= 0.1558,KC= 0.148
Ncalc = 1.88 - 1.9
Help on Optical Data: Optical Data: Biaxial (+), a=1.89, b=1.91, g=1.977, bire=0.0870, 2V(Calc)=60, 2V(Meas)=58.2. Dispersion strong.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Schultenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.18 gm/cc
note: Specific Gravity of Schultenite =6.08 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PESchultenite =1,090.96 barns/electron
U=PESchultenite x rElectron Density=5,656.08 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Schultenite is Not Radioactive
 

Schultenite Classification
Help on Dana Class: Dana Class: 37.01.02.01 (37)Anhydrous Acid Phosphates, etc
  (37.01)with miscellaneous formulae
  (37.01.02)Dana Group
 
37.01.02.01 Schultenite PbHAsO4 P 2/a 2/m
Help on Strunz Class: Strunz Class: 08.AD.30 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AD -With only large cations
 
08.AD.30 Schultenite PbHAsO4 P 2/a 2/m
 

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

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Schultenite

PbHAsO4
Dana No: 37.01.02.01 Strunz No: 08.AD.30
Locality:

 

Notes: