Cesanite

Formula:  Na3Ca2(SO4)3(OH)

Origin of name:  From locality; Cesano well, Latium, Italy

 

Crystal system:  Hexagonal

Crystal class:  6/m

Twinning:

Unit cell:

 

Colour:  Colourless

Diaphaneity:

Luster:

Habit:  Granular

Hardness:  2 to 3

Specific gravity:  2.79

Cleavage:

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:  Structural relation to apatite group

 

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