Formula: (Al,Li)MnO2(OH)2
Origin of name: From Lithium and Greek for to bear
Crystal system: Hexagonal or monoclinic
Crystal class: -3 2/m
Twinning:
Unit cell:
Colour: Bluish black to black
Diaphaneity: Opaque
Luster: Dull to metallic
Habit: Massive compact, botryoidal; fine scales; dendritic
Hardness: 3
Specific gravity: 3.14 to 3.4
Cleavage: 1; {001} perfect
Tenacity:
Streak: Blackish gray to black
Synonyms/varieties:
Comments:
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