Formula: CaMg(UO2)(CO3)3.12H2O
Origin of name: for C. Schwartz, American mineralogist
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: green, becomes dull yellowish on dehydration
Diaphaneity:
Luster:
Habit: crystals prismatic, minute, crusts
Hardness:
Specific gravity: 2.3
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: fluoresces bright yellowish green
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