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Tetrarooseveltite

Big Photo

Moldava (Moldawa), Dubí, Krušné Hory Mts (Erzgebirge), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic
© Thomas Witzke

Formula:
Bi(AsO
 
4
)
System:TetragonalColour:White to yellowish-white
Hardness:2½
Name:The name reflects its tetragonal symmetry and polymorphic relationship with rooseveltite.
Isostructural with:Scheelite
This page provides mineralogical data about Tetrarooseveltite.

Classification of Tetrarooseveltite

IMA status:Approved 1993
Strunz 8th edition ID:7/A.18-20
Nickel-Strunz 10th (pending) edition ID:8.AD.55

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
Dana 8th edition ID:38.4.5.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
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Type Occurrence of Tetrarooseveltite

Type Locality:Moldava (Moldawa), Dubí, Krušné Hory Mts (Erzgebirge), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1994

Physical Properties of Tetrarooseveltite

Lustre:Earthy
Diaphaneity (Transparency):Opaque
Colour:White to yellowish-white
Hardness (Mohs):2½

Crystallography of Tetrarooseveltite

Crystal System:Tetragonal
Cell Parameters:a = 5.08Å, c = 11.69Å
Ratio:a:c = 1 : 2.301
Unit Cell Volume:V 301.68 ų (Calculated from Unit Cell)

Optical Data of Tetrarooseveltite

Type:Uniaxial (+)
RI values: nω = 2.200 nε = 2.200
Maximum Birefringence:δ = 0.000

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

Chemical Properties of Tetrarooseveltite

Formula:
Bi(AsO
 
4
)
Essential elements:As, Bi, O
All elements listed in formula:As, Bi, O
Common Impurities:P

Relationship of Tetrarooseveltite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
CaHPO
 
4
8.AD.10Weilite
CaHAsO
 
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
NaCaPO
 
4
8.AD.30Schultenite
PbHAsO
 
4
8.AD.35Chernovite-(Y)
YAsO
 
4
8.AD.35Dreyerite
BiVO
 
4
8.AD.35Wakefieldite-(Ce)
(Ce,Pb)VO
 
4
8.AD.35Wakefieldite-(Y)
YVO
 
4
8.AD.35Xenotime-(Y)
YPO
 
4
8.AD.35Pretulite
ScPO
 
4
8.AD.35Xenotime-(Yb)
(Yb,Y,HREE)PO
 
4
8.AD.35Wakefieldite-(La)
LaVO
 
4
8.AD.40Pucherite
BiVO
 
4
8.AD.45Ximengite
BiPO
 
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.50Rooseveltite
BiAsO
 
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.60Chursinite
(Hg-Hg)
 
0.5
Hg
2+
 
[AsO
 
4
]
8.AD.65Clinobisvanite
BiVO
 
4

Other Names for Tetrarooseveltite

Synonyms:
IMA1993-006
Other Languages:
German:Tetrarooseveltit
Russian:Тетрарузвельтит
Spanish:Tetrarooseveltita

Other Information

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 Tetrarooseveltite

Reference List:Sejkora, J. and Řídkošil,T. (1994): Tetrarooseveltite, beta-Bi(AsO4), a new mineral species from Moldava deposit, the Krušné hory Mts., Northwestern Bohemia, Czech Republic. Neues Jahrbuch für Mineralogie, Monatshefte (1994): 179-184.

New Minerals (1997), New Minerals 1990-1994.

Acta Crystallographica: 1: 163-165.

Internet Links for Tetrarooseveltite

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    Localities for Tetrarooseveltite

    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Dubí
    		American Mineralogist 79, 1210-1214
    Mineral and/or Locality
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