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Magganasite & Lammerite

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GMN1038613

Magganasite & Lammerite

Description Tabs

Description
Locality: 
Arsenatnaya Fumarole, Second Scoria Cone, Great Fissure, Tolbachik Volcano, Kamchatka Krai, Russian Federation
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1.1 × 1 cm
Description

Brown to golden- or reddish-brown crude prismatic crystals on
green lammerite and white sanidine in association with colorless langbeinite and iron-black hematite.

Mineral Data
What's on the rock

Magganasite

Formula: 
CuFe3+3O(AsO4)3
Crystal System: 
Triclinic
Type Locality: 
Arsenatnaya Fumarole, Tolbachik Volcano, Kamchatka Krai, Russia

Lammerite

Formula: 
Cu3(AsO4)2
Strunz: 
8.AB.30
Hardness: 
3.0 - 4.0
Type Locality: 
Laurani Mine, Laurani District, Aroma Province, La Paz Department, Bolivia

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