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Chromferide & Ferchromide

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SKY1019549

Chromferide & Ferchromide

Type Locality

Description Tabs

Description
Locality: 
Efim Area, Kumak, Orenburg Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2 × 1.5 cm
Description

Small golden rounded crystal of the extremely rare intermetallic minerals chromferide & ferchromide from the type locality in Russia, and associated to marialite, graphite and skapolite.

Very difficult to find these mineral species in matrix !

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Chromferide

Formula: 
Fe3Cr1-x (x=0.6)
Strunz: 
1.AE.15
Hardness: 
4.0
Type Locality: 
Efim area, Kumak ore field, Orenburgskaya Oblast', Southern Urals, Urals Region, Russia...

Ferchromide

Formula: 
Cr3Fe1-x
Strunz: 
1.AE.15
Hardness: 
6.5
Type Locality: 
Efim area, Kumak ore field, Orenburgskaya Oblast', Southern Urals, Urals Region, Russia...

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