General Information:
Chemical Formula:
Na(Ca,Mg)2Fe+++6(PO4)2(P+++++Mo++++++11O39)(OH,Cl)10·33(H2O)
Environment:
Mo-rich pegmatite.
IMA Status:
Approved IMA
Locality:
Cumobabi molybdenum deposit, SW of Cumpas, Sonora, Mexico.
Name Origin:
Named for H. Mendoza Avila, Mexican geologist, who found the mineral.
Physical Properties:
Color:
yellow or orange.
Density:
3.85
Diaphaniety:
Transparent to Translucent
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:
1.5 - Between Talc and Gypsum
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
light yellow
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