Belovite

Formula:  (Sr,Ce,Na,Ca)5(PO4)3(OH)

Origin of name:  Fro Nikolai Belov, Russian crystallographer

 

Crystal system:  Hexagonal

Crystal class:  -3

Twinning:

Unit cell:

 

Colour:  Honey-yellow

Diaphaneity:

Luster:  Vitreous, greasy on fracture

Habit:  Crystals large prismatic

Hardness:  5

Specific gravity:  4.19

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments: Two distinct species with the extensions -(Ce) and -(La) indicating the predominant rare earth cation in the formula

 

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