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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Labradorite from
Bilanga meteorite, Bilanga-Yanga, Bilanga Department, Gnagna Province, Est Region, Burkina Faso


Locality type:Meteorite Fall Location
Classification
Species:Anorthite var: Labradorite
Formula:(Ca,Na)[Al(Al,Si)Si2O8]
Comments:Zoned plagioclase [An89-An48] found in plagioclase-rich aggregates which also contain diopside and silica-rich mesostasis clearly includes Labradorite (e.g,An50-An70). Cf. Domanik et al. (2004)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Labradorite data
Locality Data:Click here to view Bilanga meteorite, Bilanga-Yanga, Bilanga Department, Gnagna Province, Est Region, Burkina Faso
Data Identifiers
Mindat Occurrence Record ID:910593
Long-form Identifier:1:3:910593:5
GUID (UUID V4):0
References
Domanik, K., Kolar, S., Musselwhite, D. & Drake, M. J. (2004) Accessory silicate mineral assemblages in the Bilanga diogenite: A petrographic study. Meteoritics & Planetary Science 39(4): 567-579. (April 2004)
 
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