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Schumacherite

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Pucher Shaft, Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany
© 2004 JBS

Show Schumacherite Photos (11)
Formula:
Bi
 
3
[O|OH|(VO
 
4
)
 
2
]
System:TriclinicColour:Yellow to yellow-brown
Hardness:3
Name:Named after Fredrich Schumacher, Professor of Mineralogy.


Preisingerite Group. Petitjeanite-Schumacherite Series, and the Preisingerite-Schumacherite Series.

Classification of Schumacherite

IMA status:Approved
Strunz 8th edition ID:7/B.30-20
Nickel-Strunz 10th (pending) edition ID:8.BO.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
O : With only large cations, (OH, etc.):RO4 about 1:1
Dana 8th edition ID:41.10.9.2

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : (AB)3(XO4)2Zq
Hey's CIM Ref.:21.3.12

21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
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Type Occurrence of Schumacherite

Type Locality:Pucher Shaft, Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany
Year of Discovery:1983

Physical Properties of Schumacherite

Lustre:Adamantine
Colour:Yellow to yellow-brown
Hardness (Mohs):3

Crystallography of Schumacherite

Crystal System:Triclinic
Cell Parameters:a = 10.05Å, b = 7.46Å, c = 6.9Å
α = 87.7°, β = 115.3°, γ = 111.5°
Ratio:a:b:c = 1.347 : 1 : 0.925
Unit Cell Volume:V 430.96 ų (Calculated from Unit Cell)

Chemical Properties of Schumacherite

Formula:
Bi
 
3
[O|OH|(VO
 
4
)
 
2
]
Essential elements:Bi, H, O, V
All elements listed in formula:Bi, H, O, V
Common Impurities:As,P

Relationship of Schumacherite to other Species

Series:Forms a series with Preisingerite (see here)
Forms a series with Petitjeanite (see here)
Member of Group:
Preisingerite Group:
Related Minerals - Nickel-Strunz Grouping):

- +
8.BO.05Nacaphite
Na
 
2
Ca[F|PO
 
4
]
8.BO.10Preisingerite
Bi
 
3
[O|OH|(AsO
 
4
)
 
2
]
8.BO.10Petitjeanite
Bi
 
3
[O|OH|(PO
 
4
)
 
2
]
8.BO.15Atelestite
Bi
 
8
[O
 
5
|(OH)
 
5
|(AsO
 
4
)
 
3
]
8.BO.15Hechtsbergite
Bi
 
2
[O|OH|VO
 
4
]
8.BO.15Smrkovecite
Bi
 
2
[O|OH|PO
 
4
]
8.BO.20Kombatite
Pb
 
14
[O
 
9
|(VO
 
4
)
 
2
|Cl
 
4
]
8.BO.20Sahlinite
Pb
 
14
[O
 
9
|(AsO
 
4
)
 
2
|Cl
 
4
]
8.BO.25Heneuite
CaMg
 
5
(CO
 
3
)(PO
 
4
)
 
3
OH
8.BO.30Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
8.BO.35Kuznetsovite
(Hg-Hg)Hg
2+
 
[Cl|AsO
 
4
]
8.BO.40Artsmithite
(Hg-Hg)
2+
2
Al[(OH)
 
1+3x
|(PO
 
4
)
 
2-x
] (x ≈ 0.26)
8.BO.45Schlegelite
Bi
 
7
[O
 
4
|(MoO
 
4
)
 
2
|(AsO
 
4
)
 
3
]
Related Minerals - Hey's Index Grouping:

- +
21.3.1Steigerite
AlVO
 
4
·3H
 
2
O
21.3.2Alvanite
(Zn,Ni)Al
 
4
[(OH)
 
12
|V
 
2
O
 
6
] · 2H
 
2
O
21.3.3Metaschoderite
Al
 
2
(PO
 
4
)(VO
 
4
)·6H
 
2
O
21.3.4Schoderite
Al
 
2
(PO
 
4
)(VO
 
4
)·8H
 
2
O
21.3.5Satpaevite
Al
 
12
V
 
2
V
 
6
O
 
37
·30H
 
2
O
21.3.6Vanalite
NaAl
 
8
V
 
10
O
 
38
·30H
 
2
O
21.3.7Wakefieldite-(Ce)
CeVO
 
4
21.3.7Wakefieldite-(Y)
YVO
 
4
21.3.8Chervetite
Pb
 
2
[V
 
2
O
 
7
]
21.3.9Mottramite
Pb(Cu,Zn)[OH|VO
 
4
]
21.3.10Descloizite
Pb(Zn,Cu)[OH|VO
 
4
]
21.3.11Clinobisvanite
BiVO
 
4
21.3.11Dreyerite
BiVO
 
4
21.3.11Pucherite
BiVO
 
4
21.3.13Namibite
Cu(BiO)
 
2
(VO
 
4
)(OH)
21.3.14Pottsite
HPbBi(VO
 
4
)
 
2
·2H
 
2
O
21.3.15Duhamelite
(Pb,Bi,Ca)Cu[(OH,O)|VO
 
4
]

Other Names for Schumacherite

Synonyms:
IMA1982-023
Other Languages:
German:Schumacherit
Spanish:Schumacherita

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 Schumacherite

Reference List:Walenta, K., Dunn, P. J., Hentschel, G. & Mereiter, K. (1983): Schumacherit, ein neues Wismutmineral von Schneeberg in Sachsen. Tschermaks Mineral. Petrogr. Mitt. 31, 165-173. (in German).

American Mineralogist (1985): 70: 438.

Internet Links for Schumacherite

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  • Raman and XRD data at RRUFF project
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    Localities for Schumacherite

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