Formula: Ca2Al2V(SiO4)3(OH)
Origin of name: For A. Mukhin, Russian geologist
Crystal system: Monoclinic
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Black, with brownish tint
Diaphaneity:
Luster: Vitreous
Habit: Crystals short prismatic, irregular; irregular grains
Hardness: 8
Specific gravity: 3.47
Cleavage: 2; {001} perfect, {100} less perfect
Tenacity:
Streak: Pale brownish grey
Synonyms/varieties:
Comments:
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