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Matveevite

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Formula:
(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2O
Lustre:
Vitreous
Crystal System:
Orthorhombic
Name:
Named for K. K. Matveev (1875-1954).
A variety of Benyacarite

A Mg-Al-bearing benyacarite.


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Classification of MatveeviteHide

Discredited

Physical Properties of MatveeviteHide

Vitreous

Optical Data of MatveeviteHide

Type:
Biaxial (+)
RI values:
nα = 1.574 nβ = 1.580 nγ = 1.618
Max Birefringence:
δ = 0.044
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of MatveeviteHide

Formula:
(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2O

Crystallography of MatveeviteHide

Crystal System:
Orthorhombic

Other Language Names for MatveeviteHide

German:Matveevit
Spanish:Matveevita

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MatveeviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kydryashova, V.I. and Rozhdestvenskaya, I.V. (1991) New minerals XLV. Zapiski Vses. Mineral. Obshch.: 120(4): 100-ll5 (in Russian).
Jambor, J.L. and Puziewicz, J. (1993) New mineral names. American Mineralogist: 78: 451.
Demartin, F., Gay, H.D., Gramaccioli, C.M., and Pilati, T. (1997) Benyacarite, a new titanium-bearing phosphate mineral species from Cerro Blanco, Argentina. Canadian Mineralogist: 35: 707-712.
Jambor, J.L. and Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 400-403.
Burke, E.A.J. (2006) A mass discreditation of GQN minerals. The Canadian Mineralogist: 44(6): 1557-1560.

Internet Links for MatveeviteHide

Mineral and/or Locality  
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