Raspite Mineral Data

General Raspite Information

Chemical Formula:

PbWO4

Composition:

Molecular Weight = 455.05 gm

Lead 45.53 % Pb 49.05 % PbO

Tungsten 40.40 % W 50.95 % WO₃

Oxygen 14.06 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb(WO₄)

IMA Status:

Valid Species (Pre-IMA) 1897

Locality:

Broken Hill, New South Wales, Australia Link to MinDat.org Location Data.

Name Origin:

Named for Charles Rasp (1846-1907), German-Australian prospector, discovered of the Broken Hill ore deposit.

Name Pronunciation:

Raspite

Synonym:

ICSD 811

PDF 16-156

Raspite Image

Images:

Raspite

Comments: Brown, tabular crystal of raspite on matrix.
Location: Broken Hill, New South Wales, Australia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Raspite Crystallography

Axial Ratios:

a:b:c =2.7224:1:1.1163

Cell Dimensions:

a = 13.525, b = 4.968, c = 5.546, Z = 4; beta = 107.7° V = 355.01 Den(Calc)= 8.51

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/n

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

By Intensity(I/I_o): 3.224(1), 2.76(0.6), 3.619(0.55),

Forms:

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Forms: ( 0 1 1) ( 0 1 0) ( 1 0 1) ( 1 2 2) ( 1 1 0) ( 1 0 0) ( 0 0 1)

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Physical Properties of Raspite

Cleavage:

{100} Perfect

Color:

Yellow brown, Yellow gray, Light yellow.

Density:

8.465

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Adamantine

Streak:

yellow white

Optical Properties of Raspite

Gladstone-Dale:

CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1504,KPDmeas= 0.1512,KC= 0.1524
Ncalc = 2.29 - 2.3

Optical Data:

Biaxial (+), a=2.27, b=2.27, g=2.3, bire=0.0300, 2V(Calc)=0, 2V(Meas)=0.

Calculated Properties of Raspite

Electron Density:

Bulk Density (Electron Density)=6.99 gm/cc
note: Specific Gravity of Raspite =8.47 gm/cc.

Fermion Index:

Fermion Index = 0.15
Boson Index = 0.85

Photoelectric:

PE_Raspite=1,373.52 barns/electron
U=PE_Raspite x rElectron Density=9,607.12 barns/cc.

Radioactivity:

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

Raspite Classification

Dana Class:

48.01.04.01 (48)Anhydrous Molybdates and Tungstates

(48.01)where A XO4

(48.01.04)Dana Group

48.01.04.01 Raspite PbWO4 P 2/n 2/m

Strunz Class:

04.DG.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DG -With large (ï¿½ medium-sized) cations; chains of edge-sharing octahedra

04.DG.20 Raspite PbWO4 P 2/n 2/m

Other Raspite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Raspite :
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 Raspite Specimen Label here :

Raspite

PbWO4
Dana No: 48.01.04.01 Strunz No: 04.DG.20
Locality:

Notes: