Clinokurchatovite

Formula:  Ca(Mg,Fe,Mn)B2O5

Origin of name:  From monoclinic and kurchatovite

 

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning:    Polysynthetic

Unit cell:

 

Colour: 

Diaphaneity:

Luster:

Habit:  Crystals small, polysynthetic twinned

Hardness:  4.5

Specific gravity:  3.07 to 3.08

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:  Dimorphous with kurchatovite

 

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