Kolfanite

Formula:  Ca2Fe3O2(AsO4)3 . 2H2O

Origin of name:  From Kola Filial Akademia Nauk, Russia

 

Crystal system:  Monoclinic

Crystal class:  Unknown

Twinning: 

Unit cell: 

 

Colour:  Red to yellow, orange

Diaphaneity: 

Luster:  Adamantine

Habit: 

Hardness

Specific gravity:  3.3

Cleavage:  1

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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