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Janhaugite

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SKY704439

Janhaugite

Rare Mineral

Description Tabs

Description
Locality: 
Gjerdingselva, Nordmarka, Lunner, Viken, Norway
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1.2 cm
Description

Orange crystals of janhaugite, a Zr-Nb mineral of complex composition and with only two localities known worldwide. Type locality.

 

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

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