Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Jervisite Cascandite & Thortveitite

Views:
Watches:
SER208846

Jervisite Cascandite & Thortveitite

Description Tabs

Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.5 × 4 cm
Description

This is a very rapresentative specimen from Seula quarry: a 100 vug features a large, white tuft of jervisite crystals with intergrowth of colourless cascandite; another tuft of jervisite covered by pink allanite-Ce and some balls of blue thortveitite

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

Cascandite

Formula: 
Ca(Sc,Fe3+)(HSi3O9)
Strunz: 
9.DG.07
Hardness: 
4.5 - 5.5
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