Formula: Mg2Al2(CO3)4(OH)2 . 15H2O
Origin of name: After locality; Indigirka River, Yakutiya, Russia
Crystal system: Monoclinic
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Snow-white
Diaphaneity: Translucent
Luster: Vitreous to silky
Habit: Fibrous, rosette-like, radiating; acicular; plates
Hardness: ~ 2
Specific gravity: 1.6
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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