Parabariomicrolite

Formula: BaTa4O10(OH)2.2H2O

Origin of name: from Greek para = similar and bariomicrolite

 

Crystal system: hexagonal

Crystal class: -3 2/m

Twinning:

Unit cell: 

 

Colour: white to pale pink

Diaphaneity: translucent

Luster: vitreous to pearly

Habit: crystals from 0.01 to 0.1 mm

Hardness: 4

Specific gravity: 5.97

Cleavage: 2; {0001} and {10-10} good

Tenacity: 

Streak: white

 

Synonyms/varieties:

 

Comments: 

 

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