Brokenhillite

Formula:  (Mn,Fe)8Si6O15(OH,Cl)10

Origin of name:  From locality; Broken Hill Australia

 

Crystal system:  Hexagonal

Crystal class:  6mm

Twinning:

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Colour:

Diaphaneity:

Luster:

Habit:

Hardness:

Specific gravity:

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:  Dimorphous with manganpyrosmalite

 

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