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Garnet & Arfvedsonite

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SYA752894

Garnet & Arfvedsonite

Description Tabs

Description
Locality: 
Kamiaba, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.5 × 4 cm
Description

Small garnet, variety almandine crystals with black arfvedsonite crystals on a quartz/calcite matrix.

Old specimen from the 1960s - seldom offered nowadays

Mineral Data
What's on the rock

Arfvedsonite

Formula: 
[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Strunz: 
9.DE.25
Hardness: 
5.0 - 6.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

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