Cerite-(Ce)

Formula:  (Ce,La,Ca)9(Fe,Mg)(SiO4)6(SiO3OH)(OH)3

Origin of name:  From asteroid Ceres

 

Crystal system:  Hexagonal

Crystal class:  3m

Twinning:

Unit cell:

 

Colour:  Brown, clove-brown, cherry red to grey

Diaphaneity:

Luster:  Resinous

Habit:  Crystals pseudo-octahedral; massive, granular

Hardness:  ~ 5.5

Specific gravity:  4.78

Cleavage:  None

Tenacity:

Streak:  Grayish white

 

Synonyms/varieties:

 

Comments: 

 

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