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Potassic-magnesio-hastingsite

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AMM1104807

Potassic-magnesio-hastingsite

Type Locality

Description Tabs

Description
Locality: 
Bol'shoi Ishkul' lake, Argayashsky District, Chelyabinsk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1 × 0.7 cm
Description

Fine specimen richly decorated with black potassic-magnesio-hastingsite aggregates. Very richly set specimen.

Specimen from type locality. Potassic-magnesio-hastingsite is only known from seven localities worldwide. Rare mineral.

Mineral Data
What's on the rock

Potassic-magnesio-hastingsite

Formula: 
{K}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
Strunz: 
9.DE.15
Hardness: 
6.0 - 0.0
Type Locality: 
Aspen Cape, Bol'shoi Ishkul' lake, Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

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Money back guarantee is valid until 14 days after receiving the payment. The refund will be initiated immediately upon receiving the minerals back. Due to the return time, there may be a delay in the refund.