Majindeite, Apatite, Melilite Group, Grossular, Spinel

Specimen ID: NTP-8P8

Mineral(s)
Majindeite : Mg2Mo3O8
Apatite : Ca5(PO4)3A
Melilite Group : Ca2M(XSiO7)
Grossular : Ca3Al2(SiO4)3
Spinel : MgAl2O4
Locality
Mindat locality:
Certificates
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Events

Photo added to mindat.org

Majindeite and some additional minerals in a calcium-aluminum-rich inclusion in a fragment of the Allende meteorite. This specimen is a majindeite cotype, catalogued as USNM 7615 (Smithsonian). This is an SEM image taken by Chi Ma and uploaded with his kind permission. See the following for more information: Ma, C., & Beckett, J. R. (2016). Majindeite, Mg2Mo3O8, a new mineral from the Allende meteorite and a witness to post-crystallization oxidation of a Ca-Al-rich refractory inclusion. American Mineralogist, 101(5), 1161-1170.
Chris Emproto - 15th April 2026
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1,959,357 minIDs have been issued as of 7th Jun 2026 3:33 pm UTC