Gianellaite

Formula:  Hg4(SO4)N2

Origin of name:  For V. Gianella, American geologist

 

Crystal system:  Cubic

Crystal class:  -43m

Twinning:

Unit cell:

 

Colour:  Straw-yellow

Diaphaneity:

Luster:

Habit:  Crystals octahedral, more commonly subhedral, flattened, in rosettes

Hardness:  ~ 3

Specific gravity:  7.19

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:

 

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