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Jervisite & Thortveitite

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SER1156862

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Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.1 × 5.1 × 2.5 cm
Description

one of the best jervisite specimen ever found : in a vug some white needles (used for the analysis) and a tiny blue thortveitite crystal; in another vug a wonderful, large tuft of colourless jervisite partially covered by a pink material that belongs to the epidote group, perhaps allanite-ce.

Mineral Data
What's on the rock

Jervisite

Formula: 
(Na,Ca,Fe2+)(Sc,Mg,Fe2+)Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
white
Type Locality: 
Giacomini quarry (Diverio quarry), Agrano, Omegna, Verbano-Cusio-Ossola Province, Piedmont, Italy

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

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Start 06 Jan 18:00
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