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Thortveitite

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SER624954

Thortveitite

Description Tabs

Description
Locality: 
Seula Mine, Mount Camoscio, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 3.5 cm
Description

Here a truly rich specimen , well displaying the blue colour of thortveitite from Baveno quarries : a cluster of quartz and orthoclase crystals hosts thousands blue needles and tufts of thortveitite with also an unknown mineral forming lustrous cream balls (perhaps hingganite-Y); self collected on 2008.

Mineral Data
What's on the rock

Thortveitite

Formula: 
(Sc,Y)2Si2O7
Strunz: 
9.BC.05
Crystal System: 
Monoclinic
Hardness: 
6.0 - 7.0
Streak: 
white
Type Locality: 
Ljoslandsknipan (Thortveitittgruva), Knipan (Knipane), Ljosland, Iveland, Aust-Agder, Norway