Mopungite

Formula:  NaSb(OH)6

Origin of name:  From locality; Mopung Hills, Nevada

 

Crystal system:  Tetragonal

Crystal class:  4/m

Twinning: 

Unit cell: 

 

Colour:  Colourless to milky white

Diaphaneity: 

Luster:  Vitreous to dull

Habit:  Crystals pseudocubic, 0.2-0.3mm, as incrustations, rarely acicular

Hardness:  3

Specific gravity:  3.21

Cleavage:  None

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments:  Soluble in hot H2O

 

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