Comblainite

Formula:  (NixCo1-x)(OH)2(CO3)(1-x)/2 . yH2O

 

Origin of name:  For Gordon Comblain, Belgian discoverer of mineral

 

Crystal system:  Hexagonal

Crystal class:  -3m

Twinning:

Unit cell:

 

Colour:  Turquoise-blue

Diaphaneity:

Luster:

Habit:  Cryptocrystalline crusts on altered uraninite

Hardness:

Specific gravity:  3.05

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:

 

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