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Raspite

Formula:
PbWO
 
4
System:MonoclinicColour:Pale yellow, yellowish ...
Lustre:AdamantineHardness:2½ - 3
Name:Named after Mr. Charles Rasp (1846-1907), German-Australian prospector, and discoverer of the Broken Hill deposit.
Dimorph of:Stolzite


Scheelite Group. The monoclinic dimorph of Stolzite.

A rare secondary mineral occurring in the oxidized zones of tungsten-bearing hydrothermal base metal deposits.

Classification of Raspite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/G.01-50
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:48.1.4.1

48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
1 : AXO4
Hey's CIM Ref.:27.4.9

27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
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Type Occurrence of Raspite

Type Locality:Broken Hill Proprietary Mine (Proprietary Mine; BHP Mine), Broken Hill, Yancowinna Co., New South Wales, Australia
Place of Conservation of Type Material:Natural History Museum, Vienna, Austria: #G6263.
Year of Discovery:1897

Physical Properties of Raspite

Lustre:Adamantine
Colour:Pale yellow, yellowish brown, gray, colorless
Hardness (Mohs):2½ - 3
Cleavage:Perfect
Perfect {100}
Density (measured):8.46 g/cm3
Density (calculated):8.45 g/cm3

Crystallography of Raspite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b (P1 1 21/b) [P21/c] {P1 21/c 1} {P21/a}
Cell Parameters:a = 13.555Å, b = 4.976Å, c = 5.561Å
β = 107.63°
Ratio:a:b:c = 2.724 : 1 : 1.118
Unit Cell Volume: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}.
Crystal Atlas:
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Raspite no.1 - Goldschmidt (1913-1926)
Raspite no.2 - Goldschmidt (1913-1926)
Raspite no.4 - Goldschmidt (1913-1926)

About Crystal Atlas

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Optical Data of Raspite

Type:Biaxial (+)
RI values: nα = 2.270 nβ = 2.270 nγ = 2.300
Maximum Birefringence:δ = 0.030

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:relatively strong

Chemical Properties of Raspite

Formula:
PbWO
 
4
Essential elements:O, Pb, W
All elements listed in formula:O, Pb, W

Relationship of Raspite to other Species

Related to:
  • Scheelite Group
  • Common Associates:
    Yttrotungstite-(Y)StolziteFerritungstiteCuprotungstiteAlumotungstite
    Related Minerals - Nickel-Strunz Grouping):
    4.DG.05Euxenite-(Y)
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    O
     
    6
    4.DG.05Fersmite
    (Ca,Ce,Na)(Nb,Ta,Ti)
     
    2
    (O,OH,F)
     
    6
    4.DG.05Kobeite-(Y)
    (Y,Zr)
     
    2
    (Ti,Fe
    3+
     
    )
     
    2
    (O,OH)
     
    7
    4.DG.05Loranskite-(Y)
    (Y,Ce,Ca)ZrTaO
     
    6
    (?)
    4.DG.05Polycrase-(Y)
    Y(Ti,Nb)
     
    2
    O
     
    6
    4.DG.05Tanteuxenite-(Y)
    (Y,Ce,Ca)(Ta,Nb,Ti)
     
    2
    (O,OH)
     
    6
    4.DG.05Uranopolycrase
    (U
    4+
     
    ,Y)(Ti,Nb)
     
    2
    O
     
    6
    4.DG.05Yttrocrasite-(Y)
    (Y,Th,Ca,U)(Ti,Fe)
     
    2
    (O,OH)
     
    6
    4.DG.10β-Fergusonite-(Y)
    YNbO
     
    4
    4.DG.10β-Fergusonite-(Nd)
    (Nd,Ce)NbO
     
    4
    4.DG.10β-Fergusonite-(Ce)
    (Ce,La,Nd)NbO
     
    4
    4.DG.10Yttrotantalite-(Y)
    (Y,Ca,U
    4+
     
    ,Fe
    2+
     
    )
     
    2
    (Ta,Nb)
     
    2
    O
     
    8
    4.DG.10Beta-Fergusonite-(Nd)
    4.DG.15Foordite
    (Sn,Pb)(Nb,Ta)
     
    2
    O
     
    6
    4.DG.15Thoreaulite
    SnTa
     
    2
    O
     
    6
    Related Minerals - Hey's Index Grouping:
    27.4.1Cuprotungstite
    Cu
     
    2
    [(OH)
     
    2
    |WO
     
    4
    ]
    27.4.2Scheelite
    Ca[WO
     
    4
    ]
    27.4.4Anthoinite
    WAlO
     
    3
    (OH)
     
    3
    (?)
    27.4.5Mpororoite
    AlWO
     
    3
    (OH)
     
    3
    ·2H
     
    2
    O
    27.4.6Yttrotungstite-(Y)
    YW
     
    2
    O
     
    6
    (OH)
     
    3
    27.4.7Yttrotungstite-(Ce)
    (Ce,Nd,Y)W
     
    2
    O
     
    6
    (OH)
     
    3
    27.4.8Stolzite
    Pb[WO
     
    4
    ]
    27.4.10Russellite
    (BiO)
     
    2
    [WO
     
    4
    ]
    27.4.11Pinalite
    Pb
     
    3
    WO
     
    3
    Cl
     
    2
    27.4.12Uranotungstite
    (Fe
    2+
     
    ,Ba,Pb)(UO
     
    2
    )
     
    2
    [(OH)
     
    4
    |WO
     
    4
    ] · 12H
     
    2
    O
    27.4.13Hübnerite
    MnWO
     
    4
    27.4.14Ferberite
    FeWO
     
    4
    27.4.15Wolframite
    (Fe
    2+
     
    )WO
     
    4
     
     
    to (Mn
    2+
     
    )WO
     
    4
    27.4.16Ferritungstite
    (W,Fe
    3+
     
    )(O,OH)
     
    3
    27.4.17Phyllotungstite
    Ca
     
    x
    [(W,Fe)(O,OH)
     
    3
    ]·yH
     
    2
    O
    27.4.18Qitianlingite
    (Fe,Mn)
     
    2
    (Nb,Ta)
     
    2
    WO
     
    10

    Other Names for Raspite

    German names:
    Raspit
    Russian names:
    Распит
    Spanish names:
    Raspita

    Other Information

    Thermal Behaviour:Inverts to Stolzite above 410°C.
    Other Information:Decomposed by HCl with separation of yellow tungstic acid.
    Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

    References for Raspite

    Reference List:Hlawatsch (1897) Annalen des kaiserlich-königlichen naturhistorischen Staats-Museum: 12: 33-41.

    Hlawatsch (1898) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 29: 137.

    Hlawatsch (1899) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 31: 8.

    Hussak (1903) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 723.

    Hlawatsch (1905) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 423.

    Hlawatsch (1907) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 42: 587.

    Jaeger and Germs (1921) Zeitschrift für anorganische und allgemeine Chemie, Hamburg, Leipzig: 119: 145.

    Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 125.

    Jung (1931) Jb. Min., Beil.-Bd.: 64A: 197.

    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1089-1090.

    Zeitschrift für Kristallographie: 29: 137.

    Fujita, T., I. Kawada, and K. Kato (1977) Raspite from Broken Hill. Acta Crystallographica: B33, 162–164.

    Internet Links for Raspite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Raspite in the Natural History Museum (London) online catalogue
  • Raspite details from Handbook of Mineralogy (PDF)
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    Localities for Raspite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • New South Wales
      • Georgiana Co.
        • Tuena
          • Kangaloolah
    Brent Thorne
      • Yancowinna Co.
    [MinRec 7:31, 19:423-424, 19:363]
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1090.
    Annal.Naturhist.Hofmus. Wien (1897) 12, 33-41; Rocks & Min.:62:224-225.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Mariana
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1090.
    France
     
    • Auvergne
      • Allier
        • Ebreuil
          • Echassières
    Le Règne Minéral, (33), 5-25.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    Japan
     
    • Honshu Island
      • Kinki Region
        • Kyoto Prefecture
          • Kameoka City
    Fujiwara, T. (1977) Chigaku Kenkyu, 28, 279-283.
    Mexico
     
    • Guanajuato
      • Mun. de Guanajuato
        • Guanajuato
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1090.
    Rwanda
     
    • Ruhengeri Province
      • Cyeru Commune
        • Gifurwe sector
    J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3 (1997), 17
    Mineral and/or Locality
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