Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Petscheckite from
Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar


02523730017368216621861.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
07072890017368216627585.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
03683790017360851236790.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
09346990017366611931005.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
07072890017368216627585.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
05880460017368216638144.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
02523730017368216621861.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
07072890017368216627585.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
03683790017360851236790.jpg
Petscheckite, etc.

Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
Locality type:Pegmatite
Classification
Species:Petscheckite
Formula:UFe(Nb,Ta)2O8
Chemical Analyses:
Oxide wt%:
1
UO240.50 %
Nb2O5 + Ta2O545.99 %
ZrO20.42 %
Al2O30.71 %
Fe2O310.01 %
FeO0.10 %
MnO1.32 %
CaO0.49 %
K2O0.05 %
Total:99.59 %
Sample references:
1Type Specimen
M
Comments:As metamict crystals up to 4 cm long and 2 cm thick with a greybrowh\n, brown, yellow or white crust of varying thickness.
Colour:black
Confirmation
Validity:Valid - Type Locality
Associated Minerals Based on Photo Data:
Liandratite6
Data
Mineral Data:Click here to view Petscheckite data
Locality Data:Click here to view Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:89727
Long-form Identifier:1:3:89727:5
GUID (UUID V4):0
References
Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946
 
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