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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