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Rooseveltite

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Formula:
Bi(AsO
 
4
)
System:MonoclinicColour:White to pale gray, pale ...
Hardness:4 - 4½
Member of:Monazite Group
Name:
For US Franklin Delano Roosevelt (1882-1945), 32nd President of the United States of America.
Dimorph of:Tetrarooseveltite
This page provides mineralogical data about Rooseveltite.

Classification of Rooseveltite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/A.18-10
Nickel-Strunz 10th (pending) edition ID:8.AD.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
Dana 8th edition ID:38.4.4.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
Hey's CIM Ref.:20.6.1

20 : Arsenates (also arsenates with phosphate, but without other anions)
6 : Arsenates of Bi
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Type Occurrence of Rooseveltite

Type Locality:Santiaguillo, Macha area, Chayanta Province, Potosí Department, Bolivia
Place of Conservation of Type Material:Smithsonian, Harvard University
Year of Discovery:1946
Geological Setting of type material:Veinlets in rhyolitic and dacitic lava flows.
Associated Minerals at type locality:
Wood Tin

Physical Properties of Rooseveltite

Lustre:Adamantine
Diaphaneity (Transparency):Transparent
Colour:White to pale gray, pale green, yellow
Hardness (Mohs):4 - 4½
Hardness (Vickers):VHN25=513 kg/mm2
Tenacity:Brittle
Fracture:Irregular/Uneven, Conchoidal
Density (measured):6.86 - 7.01 g/cm3
Density (calculated):7.21 g/cm3

Crystallography of Rooseveltite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 6.879(1) Å, b = 7.159(1) Å, c = 6.732(1) Å
β = 104.83°
Ratio:a:b:c = 0.961 : 1 : 0.94
Unit Cell Volume:V 320.49 ų (Calculated from Unit Cell)
Z:4
Morphology:Botryoidal crusts.
Comment:On synthetic material

Optical Data of Rooseveltite

Type:Biaxial (+)
RI values: nα = 2.090 nβ = 2.150 nγ = 2.270
2V:Measured: 50° , Calculated: 62°
Maximum Birefringence:δ = 0.180

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Anisotropism:Very high indices of refraction.
Dispersion:extreme

Chemical Properties of Rooseveltite

Formula:
Bi(AsO
 
4
)
Simplified for copy/paste:Bi(AsO4)
Essential elements:As, Bi, O
All elements listed in formula:As, Bi, O

Relationship of Rooseveltite to other Species

Member of:Monazite Group
Other Members of Group:

- +
Cheralite
(Ca,Ce)(Th,Ce)(PO
 
4
)
 
2
Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
Monazite
Monazite-(Ce)
(Ce,La,Nd,Th)(PO
 
4
)
Monazite-(La)
(La,Ce,Nd)(PO
 
4
)
Monazite-(Nd)
(Nd,La,Ce)(PO
 
4
)
Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
Turnerite
Unnamed (Gd-dominant monazite)
((Gd,Y,Dy,Sm,Nd),Th,Ca)PO
 
4
Related Minerals - Nickel-Strunz Grouping):

- +
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
Ca(HPO
 
4
)
8.AD.10Weilite
Ca(HAsO
 
4
)
8.AD.10Švenekite
Ca(H
 
2
AsO
 
4
)
 
2
8.AD.15Archerite
(K,NH
 
4
)(H
 
2
PO
 
4
)
8.AD.15Biphosphammite
(NH
 
4
,K)(H
 
2
PO
 
4
)
8.AD.20Phosphammite
(NH
 
4
)
 
2
(HPO
 
4
)
8.AD.25Buchwaldite
NaCa(PO
 
4
)
8.AD.30Schultenite
Pb(HAsO
 
4
)
8.AD.35Chernovite-(Y)
Y(AsO
 
4
)
8.AD.35Dreyerite
Bi(VO
 
4
)
8.AD.35Wakefieldite-(Ce)
Ce(VO
 
4
)
8.AD.35Wakefieldite-(Y)
Y(VO
 
4
)
8.AD.35Xenotime-(Y)
Y(PO
 
4
)
8.AD.35Pretulite
Sc(PO
 
4
)
8.AD.35Xenotime-(Yb)
(Yb,Y,HREE)(PO
 
4
)
8.AD.35Wakefieldite-(La)
La(VO
 
4
)
8.AD.40Pucherite
Bi(VO
 
4
)
8.AD.45Ximengite
Bi(PO
 
4
)
8.AD.50Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
8.AD.50Monazite-(Ce)
(Ce,La,Nd,Th)(PO
 
4
)
8.AD.50Monazite-(La)
(La,Ce,Nd)(PO
 
4
)
8.AD.50Monazite-(Nd)
(Nd,La,Ce)(PO
 
4
)
8.AD.50Cheralite
(Ca,Ce)(Th,Ce)(PO
 
4
)
 
2
8.AD.50Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
8.AD.50UM2005-35-VO:CaFePSiTh
(Th,Ca)(VO
 
4
,SiO
 
4
,PO
 
4
)
8.AD.55Tetrarooseveltite
Bi(AsO
 
4
)
8.AD.60Chursinite
(Hg
+
2
)
 
0.5
Hg
2+
 
(AsO
 
4
)
8.AD.65Clinobisvanite
Bi(VO
 
4
)
Related Minerals - Hey's Index Grouping:

- +
20.6.2Preisingerite
Bi
 
3
(AsO
 
4
)
 
2
O(OH)
20.6.3Arsenobismite
20.6.4Atelestite
Bi
 
2
(AsO
 
4
)O(OH)
20.6.5Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O
20.6.6Walpurgite
(BiO)
 
4
(UO
 
2
)(AsO
 
4
)
 
2
· 3H
 
2
O

Other Names for Rooseveltite

Other Languages:
German:Rooseveltit
Russian:Рузвельтит
Simplified Chinese:砷铋矿
砷铋石
Spanish:Rooseveltita
Traditional Chinese:砷鉍礦
砷鉍石

Other Information

Other Information:Soluble in acids.
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 Rooseveltite

Reference List:

- +
Herzenberg (1946) Facultad. Nac. de Ing., Univ. Téc. Oruro, Boliviqa, Bol. Téc., no. 1 (as Roosevelita).

American Mineralogist (1947): 32: 372.

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.: 697.

Tschermaks Mineralogische und Petrographische Mitteilungen (1972): 17: 71.

Acta Crystallographica (1982): B38: 1559-1561.

Internet Links for Rooseveltite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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  • Localities for Rooseveltite

    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.
    (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.
    Argentina
     
    • San Juan
      • Calingasta
    Lapis 8(4), 25 (1983)
    American Mineralogist (1982) 67:833-840; Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
    Australia
     
    • New South Wales
      • Gough Co.
        • Elsmore
    Rankin, J., Lawrence, L. J., Sharpe, J. L. and Williams, P. A. (2002): Rare secondary bismuth, tungsten and molybdenum minerals from Elsmore, New England district of New South Wales. Austral. J. Mineral. 8, 55-60.; Rankin, J., Lawrence, L. J., Sharpe, J. L. and Williams, P. A. (2002): Rare secondary bismuth, tungsten and molybdenum minerals from Elsmore, New England district of New South Wales. Austral. J. Mineral. 8, 55-60.
    Bolivia
     
    • Potosí Department
      • Chayanta Province
        • Macha area
    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: 697.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Horní Slavkov (Schlaggenwald)
          • Krásno (Schönfeld)
    Sejkora, J., Ondruš, P., Fikar, M., Veselovský, F., Mach, Z., Gabašová, A., Skoda, R. & Beran, P. (2006): Supergene minerals at the Huber stock and Schnöd stock deposits, Krásno ore District, the Slavkovský les area, Czech Republic. Journal of the Czech Geological Society 51, 57-101.
        • Krušné Hory Mts (Erzgebirge)
    Jan Hloušek
      • Plzeň Region
        • Klatovy (Klattau)
          • Vimperk
    Šrein, V. et al.: Zlatonosná mineralizace v okolí Horské Kvildy na Šumavě, Česká republika. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 2, 153-176.
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Dubí (Eichwald)
    Sejkora, J.: Minerály ložiska Moldava v Krušných horách. Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 110-116.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Calw
    Walenta, K. (1992): "Die Mineralien des Schwarzwaldes", Weise (Munich).
        • Oberkirch
          • Ödsbach
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Schenkenzell
          • Wittichen
            • Burgfelsen
    No reference listed
            • Heubach Valley
    No reference listed
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Schramberg
          • Falkenstein valley
    No reference listed
        • Wolfach
          • Oberwolfach
            • Rankach valley
    Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    • Saxony
      • Erzgebirge
        • Johanngeorgenstadt District
    [Eur.J.Mineral. 13:167-175]
        • Schneeberg District
    Lapis 30(7/8):67-68 (2005)
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
              • Hilarion area
    No reference listed
    Iran
     
    • Lorestan Province
      • Ashour Abad
    Nezafatis, N. (2006): Au-Sn-W-Cu Mineralization in the Astaneh-Sarband Area, West Central Iran. PhD thesis, University of Tübingen (Germany), 116 pp.
    • Markazi Province
      • Astaneh
    Nezafatis, N. (2006): Au-Sn-W-Cu Mineralization in the Astaneh-Sarband Area, West Central Iran. PhD thesis, University of Tübingen (Germany), 116 pp.
    Nezafatis, N. (2006): Au-Sn-W-Cu Mineralization in the Astaneh-Sarband Area, West Central Iran. PhD thesis, University of Tübingen (Germany), 116 pp.
    Portugal
     
    • Bragança District
      • Macedo de Cavaleiros
        • Murçós
    Antunes, I.M.H.R., Gomes, M.E.P., Neiva, A.M.R., and Teixeira, R.J.S. (2010): Goldschmidt Conference Abstracts 2010.
    • Viana do Castelo District
      • Ponte de Lima
        • Estorãos
    Pedro Alves Collection. p-XRD and EMPA analysed.
    Russia
     
    • Far-Eastern Region
      • Magadanskaya Oblast'
        • Verkhne-Kalganinsky Massif
    Krinov D.I., Azarova Y.V., Struzhkov S.F., Natalenko M.V., Radchenko Y.I. (2011) On the Discovery of Rooseveltite, Preisingerite, Troegerite, and Zeunerite In Bi-As-Cu-U-mineralization from the Oranzhevoye Ore Field, Verkhne-Kalganinsky Massif, Magadan Region, Russia. New Data on Minerals 46:20-24
    Spain
     
    • Andalusia
      • Córdoba
        • Villanueva de Córdoba
    Schnorrer, G. (2000): Die Minerale der ehemaligen Grube Espuela de San Miguel bei Villanueva de Cordoba, Prov. Cordoba in Spanien. Der Aufschluss, 51, 211-222. (in German)
    • Galicia
      • Orense (Ourense)
        • Ramirás
    Calvo, Miguel. Minerales y Minas de España, Vol III. Museo de Ciencias naturales de Álava. Pag. 614
    UK
     
    • England
      • Cumbria
        • North and Western Region (Cumberland)
          • Caldbeck Fells
            • Carrock Fell
    Rumsey, M.S. (2007): UK Journal of Mines & Minerals (28), 51-53
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