Formula: Mg3(BO3)(F,OH)3
Origin of name: From composition
Crystal system: Hexagonal
Crystal class: 6/m
Twinning:
Unit cell:
Colour: Colourless, white
Diaphaneity: Transparent to translucent
Luster: Vitreous
Habit: Crystals prismatic, subparallel or divergent aggregates; compact fibrous masses or felted aggregates
Hardness: 3.5
Specific gravity: 2.98
Cleavage: 1; {0001} indistinct
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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