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Erdite & Rasvumite

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JYJ804543

Erdite & Rasvumite

Description Tabs

Description
Locality: 
Coyote Peak, Coastal Range, Humboldt County, California, United States of America
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.9 × 0.6 × 0.6 cm
Description

Red erdite associated with black rasvumite, magnetite and minor pyrrhotite from the Coyote Peak, California.

Mineral Data
What's on the rock

Erdite

Formula: 
NaFeS2·2H2O
Strunz: 
2.FD.20
Crystal System: 
Monoclinic
Hardness: 
2.0
Streak: 
Black
Type Locality: 
Coyote Peak, Coastal Range, Humboldt Co., California, USA

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...