Heideite

Formula:  (Fe,Cr)1+x(Ti,Fe)2S4

Origin of name:   For Fritz Heide, German meteroriticist

 

Crystal system:   Monoclinic

Crystal class:  2/m

Twinning: 

Unit cell: 

 

Colour:  Creamy white in polished section

Diaphaneity:  Opaque

Luster: 

Habit:  Anhedral grains, submicroscopic

Hardness:  3.5 to 4.5

Specific gravity:  4.1

Cleavage:   None

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments:   From a meteorite

 

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