Raspite
A valid IMA mineral species - grandfathered
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About Raspite
Charles Rasp
Formula:
Pb(WO4)
Colour:
Pale yellow, yellowish brown, gray, colorless
Lustre:
Adamantine
Hardness:
2½ - 3
Specific Gravity:
8.46
Crystal System:
Monoclinic
Name:
Named after Mr. Charles Rasp (7 October 1846, Stuttgart, Kingdom of Württemberg (now Germany) - 22 May 1907, Adelaide, South Australia, Australia), German-Australian prospector, and discoverer of the Broken Hill deposit.
Type Locality:
Dimorph of:
Isostructural with:
The monoclinic dimorph of stolzite. Heating of raspite to 395(5)°C leads to a transformation into stolzite.
A rare secondary mineral occurring in the oxidized zones of tungsten-bearing hydrothermal base metal deposits.
An unusual Te-rich variety is described by Andrade et al. (2014). Murphyite is the mineral representing the case when Te is dominant over W (and other constituents), being the Te analogue of raspite.
A rare secondary mineral occurring in the oxidized zones of tungsten-bearing hydrothermal base metal deposits.
An unusual Te-rich variety is described by Andrade et al. (2014). Murphyite is the mineral representing the case when Te is dominant over W (and other constituents), being the Te analogue of raspite.
Unique Identifiers
Mindat ID:
3368
Long-form identifier:
mindat:1:1:3368:4
GUID
(UUID V4):
(UUID V4):
5b01309e-12e1-44d1-93d6-8f67f80787e2
IMA Classification of Raspite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Raspite
4.DG.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
G : With large (+- medium-sized) cations; chains of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
G : With large (+- medium-sized) cations; chains of edge-sharing octahedra
48.1.4.1
48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
1 : AXO4
48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
1 : AXO4
27.4.9
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Rsp | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Raspite
Adamantine
Transparency:
Transparent
Colour:
Pale yellow, yellowish brown, gray, colorless
Hardness:
2½ - 3 on Mohs scale
Cleavage:
Perfect
Perfect {100}
Perfect {100}
Density:
8.46 g/cm3 (Measured) 8.45 g/cm3 (Calculated)
Optical Data of Raspite
Type:
Biaxial (+)
RI values:
nα = 2.270 nβ = 2.270 nγ = 2.300
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively strong
Optical Extinction:
Y = b; Z ∧ c ≃ 30°.
Comments:
Reflectivity 15.9-16.5% @ 546 nm in air.
Chemistry of Raspite
Mindat Formula:
Pb(WO4)
Elements listed:
Crystallography of Raspite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 13.555(11) Å, b = 4.976(2) Å, c = 5.561(3) Å
β = 107.63(7)°
β = 107.63(7)°
Ratio:
a:b:c = 2.724 : 1 : 1.118
Unit Cell V:
357.47 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals typically tabular, flattened on {100}, which is striated parallel [010], and somewhat elongated parallel [010]; also elongated [100] or thin tabular {101}.
Twinning:
Common on {100}; also on {102}.
Comment:
Cell data from Fujita et al. (1977).
Crystallographic forms of Raspite
Crystal Atlas:
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Raspite no.1 - Goldschmidt (1913-1926)
Raspite no.2 - Goldschmidt (1913-1926)
Raspite no.4 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by
www.smorf.nl.
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009580 | Raspite | Fujita T, Kawada I, Kato K (1977) Raspite from Broken Hill Acta Crystallographica B33 162-164 |  | 1977 | Broken Hill NSW, Australia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.619 Å | (55) |
| 3.593 Å | (20) |
| 3.478 Å | (20) |
| 3.224 Å | (100) |
| 2.760 Å | (60) |
| 2.705 Å | (55) |
| 1.812 Å | (25) |
Comments:
Broken Hill, Australia. ICDD 16-156.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Geological Setting:
Secondary oxidation zone of tungsten containing ores.
Type Occurrence of Raspite
Place of Conservation of Type Material:
Natural History Museum, Vienna, Austria: #G6263.
Other Language Names for Raspite
Common Associates
Associated Minerals Based on Photo Data:
| 69 photos of Raspite associated with Stolzite | Pb(WO4) |
| 24 photos of Raspite associated with Alunite Supergroup | AD3(XO4)2(OH)6 |
| 7 photos of Raspite associated with Cuprotungstite | Cu2(WO4)(OH)2 |
| 7 photos of Raspite associated with Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
| 7 photos of Raspite associated with Copper-bearing Scheelite | (Ca,Cu)WO4 |
| 6 photos of Raspite associated with Pyromorphite | Pb5(PO4)3Cl |
| 5 photos of Raspite associated with Quartz | SiO2 |
| 5 photos of Raspite associated with Carminite | PbFe3+2(AsO4)2(OH)2 |
| 5 photos of Raspite associated with Chalcopyrite | CuFeS2 |
| 4 photos of Raspite associated with Mimetite-Pyromorphite Series |
Related Minerals - Strunz-mindat Grouping
| 4.DG.05 | Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| 4.DG.05 | Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| 4.DG.05 | Kobeite-(Y) | (Y,U)(Ti,Nb)2(O,OH)6 (?) |
| 4.DG.05 | Loranskite-(Y) | (Y,Ce,Ca)ZrTaO6 (?) |
| 4.DG.05 | Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| 4.DG.05 | Uranopolycrase | (U4+,Y)(Ti,Nb)2O6 |
| 4.DG.05 | Yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 |
| 4.DG.10 | Clinofergusonite-(Y) | YNbO4 |
| 4.DG.10 | Clinofergusonite-(Nd) | (Nd,Ce)NbO4 |
| 4.DG.10 | Clinofergusonite-(Ce) | CeNbO4 |
| 4.DG.10 | Yttrotantalite-(Y) | (Y,U,Fe2+)(Ta,Nb)(O,OH)4 |
| 4.DG.15 | Foordite | Sn2+Nb2O6 |
| 4.DG.15 | Thoreaulite | Sn2+Ta2O6 |
Other Information
Thermal Behaviour:
Inverts to Stolzite above 410°C.
Notes:
Decomposed by HCl with separation of yellow tungstic acid.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Raspite
mindat.org URL:
https://www.mindat.org/min-3368.html
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References for Raspite
Localities for Raspite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Australia | |
| Thorne (n.d.) +1 other reference |
| Mason (1976) +3 other references |
| Museum Victoria mineral collection | |
| Hlawatsch (1897) +1 other reference | |
| Rocks & Min.:62:224-225. +1 other reference | |
Brazil | |
| Hlawatsch (1905) +1 other reference |
Canada | |
| SASSANO et al. (1987) |
China | |
| Guangming Yang (1980) |
| Yuan et al. (2021) |
France | |
| Pierre Le Roch & Jean-Marc Johannet ... +1 other reference |
| Cuchet et al. (2000) | |
| Jean-Marc Johannet collection |
| GOURAULT C. (2011) |
| Mindat's pics and Philippe SAGET collection. Stolzite et al. (J.-C. Leydet, P. Leroch', J.-P. Tissier, Ph. Saget...) |
| Ansermet et al. (2010) |
| Gayraud et al. (2011) +1 other reference |
Germany | |
| Walenta (1992) |
Japan | |
| Fujiwara (1977) |
Mexico | |
| Megaw |
| Palache et al. (1951) |
Myanmar | |
| ミン et al. (n.d.) |
Namibia | |
| JAHN +3 other references |
Portugal | |
| Hydrothermal tungstates from Serra de ... |
| C. Leal Gomes et al. (2011) | |
Rwanda | |
| Jedwab et al. (1979) +1 other reference |
| Dewaele et al. (2016) |
Turkey | |
| Powell et al. (2021) |
UK | |
| David P. Clough Collection. Collected 14 June 2013. Natural History Museum (London) |
| Neall et al. (2001) |
USA | |
| "The Accidental Pocket" talk presented ... |
| Tony Kampf identification 2011 +2 other references |
| Jerry Cone Collection |
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Broken Hill Proprietary Mine, Broken Hill, Broken Hill district, Yancowinna Co., New South Wales, Australia