Chantalite

Formula:  CaAl2SiO4(OH)4

Origin of name:  For Chantal Sarp, wife of mineral's discoverer

 

Crystal system:  Tetragonal

Crystal class:  4/m

Twinning:

Unit cell:

 

Colour:  Colourless to white

Diaphaneity:

Luster:  Vitreous

Habit:  Anhedral grains

Hardness:

Specific gravity:  2.8 to 2.9

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:

 

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