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Keldyshite & Pyrophanite

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JYJ713866

Keldyshite & Pyrophanite

Description Tabs

Description
Locality: 
Bratthagen Quarries, Lågendalen, Hedrum, Larvik, Vestfold og Telemark, Norway
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.4 × 2 cm
Description

Beige inclusion of keldyshite with minor rosenbuschite sprays close to it and black pyrophanite. 

 

Mineral Data
What's on the rock

Keldyshite

Formula: 
(Na,H)2ZrSi2O7
Strunz: 
9.BC.10
Hardness: 
3.5 - 4.5
Colour: 
White
Type Locality: 
Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Pyrophanite

Formula: 
Mn2+TiO3
Strunz: 
4.CB.05
Hardness: 
5.0 - 6.0
Type Locality: 
Harstigen Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden