Formula: Na2CaMg(PO4)2
Origin of name: For Brian Mason, New Zealand - American mineralogist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Colourless
Diaphaneity: Transparent
Luster:
Habit: Microscopic grains
Hardness: 4 to 5
Specific gravity: 3.0
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: From a meteorite
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