Bradleyite

Formula:  Na3Mg(PO4)(CO3)

Origin of name:  For W. Bradley, American geologist

 

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning:

Unit cell:

 

Colour:  Probably colourless or white; light gray from included clay

Diaphaneity:

Luster:

Habit:  Fine-grained masses

Hardness:

Specific gravity:  2.734

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:

 

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