Natanite

Formula: FeSn(OH)6

Origin of name: for Anatoly Ilich Ginsberg, Russian geologist

 

Crystal system: cubic

Crystal class: 4/m -3 2/m

Twinning: 

Unit cell: a = 7.83 Å

 

Colour: greenish brown

Diaphaneity: 

Luster: vitreous

Habit: 

Hardness: 5

Specific gravity: 4.04

Cleavage: none

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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