Formula: Mn2Mn(AsO4)(OH)4
Origin of name: For Gustav Flink, Swedish mineralogist
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Deep greenish brown
Diaphaneity: Transparent
Luster: Vitreous to greasy
Habit: Crystals, thin, tabular, slightly elongated in feathery aggregates
Hardness: 4.5
Specific gravity: 3.78
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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