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Janhaugite

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JYJ142230

Janhaugite

Description Tabs

Description
Locality: 
Gjerdingselva, Nordmarka, Lunner, Viken, Norway
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.3 × 1.1 cm
Description

Orange brown janhaugite from Gjerdingen, Gjerdingselva.

Mineral Data
What's on the rock

Janhaugite

Formula: 
(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2
Strunz: 
9.BE.17
Hardness: 
5.0
Type Locality: 
Gjerdingselva (Gjerdingen), Nordmarka, Lunner, Oppland, Norway