Qandilite

Formula: (Mg,Fe)2(Ti,Fe,Al)O4

Origin of name: after locality Qandil deposit, Iraq

 

Crystal system: Cubic/Isometric

Crystal class: 4/m 3 2/m

Twinning: 

Unit cell: a = 8.4033

 

Colour: Black

Diaphaneity: Opaque

Luster: Metallic

Habit: euhedral grains, 0.1 to 2.3 mm, octahedral

Hardness: 7

Specific gravity: 4.03

Cleavage: 1; {111} perfect

Tenacity: Brittle

Streak: Black

 

Synonyms/varieties:

 

Comments:  Strongly magnetic

 

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