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Middendorfite

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GMN154377

Middendorfite

Type Locality

Description Tabs

Description
Locality: 
Kirovskii Mine, Kukisvumchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Size Range: 
Micromount (under 1cm)
Size: 
0.1 × 0.1 × 0.1 cm
Description

Bright orange-brown grain of this extremely rare mineral.

Mineral Data
What's on the rock

Middendorfite

Formula: 
K3Na2Mn5Si12(O,OH)36·2H2O
Strunz: 
9.EJ.10
Hardness: 
3.0 - 3.5
Type Locality: 
Hilairitovoye pegmatite, Kirovskii apatite mine (Kirovsky Mine; Kirovskii Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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