Formula: NaMn6Al3(SO4)2(OH)22.8H2O
Origin of name: after locality Shiga Prefecture, Japan
Crystal system: hexagonal
Crystal class: -3
Twinning:
Unit cell:
Colour: light yellow
Diaphaneity:
Luster:
Habit: crystals tabular, hexagonal, 1 mm
Hardness: 2
Specific gravity: 2.32
Cleavage: 1; {0001} perfect
Tenacity:
Streak: light yellow to white
Synonyms/varieties:
Comments:
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