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Rasvumite

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SKY639923

Rasvumite

Type Locality

Description Tabs

Description
Locality: 
Rasvumchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 0.7 × 0.5 cm
Description

Brown crystal aggregates of the rare potassium sulphide mineral rasvumite from the type locality.

Rasvumite is one of the few sulphides with sodium in its chemical composition.

Mineral Data
What's on the rock

Rasvumite

Formula: 
KFe2S3
Strunz: 
2.FB.20
Crystal System: 
Orthorhombic
Hardness: 
4.0 - 5.0
Type Locality: 
Kirovskii apatite mine (Kirovsky Mine; Kirovskii Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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