Bismoclite

Formula:  BiOCl

Origin of name:  Combination of symbols of elements

 

Crystal system:  Tetragonal

Crystal class:  4/m 2/m 2/m

Twinning:

Unit cell:

 

Colour:  Whitish, grayish, yellowish brown, brown

Diaphaneity:  Transparent to translucent

Luster:  Greasy to silky, pearly on cleavage

Habit:  Massive, compact, earthy, scales

Hardness:  2 to 2.5

Specific gravity:  7.717

Cleavage:  1; {001} perfect

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:

 

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