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Gjerdingenite-Fe

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SKY601219

Gjerdingenite-Fe

Rare Mineral

Description Tabs

Description
Locality: 
Gjerdingselva, Nordmarka, Lunner, Viken, Norway
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.3 × 1.2 cm
Description

Yellow-orange prismatic crystals of the rare niobium mineral
Gjerdingenite-Fe from  a Norwegian locality.

Mineral Data
What's on the rock

Gjerdingenite-Fe

Formula: 
K2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Strunz: 
9.CE.30c
Hardness: 
0.0
Type Locality: 
Gjerdingselva (Gjerdingen), Nordmarka, Lunner, Oppland, Norway

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