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Thorite Polycrase Titanite & Allanite-(Ce)

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SER826246

Thorite Polycrase Titanite & Allanite-(Ce)

Description Tabs

Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.1 × 2.1 cm
Description

an orange crystal of polycrase hosts some light orange thorite crystals; in another vug, a lustrous orange titanite crystal and a dark brown ball od allanite-Ce

Mineral Data
What's on the rock

Thorite

Formula: 
(Th,U)SiO4
Strunz: 
9.AD.30
Crystal System: 
Tetragonal
Hardness: 
4.5
Type Locality: 
The Thorite Hole, Løvøya (Løvø; Lövö; Lövöe), Langesundsfjorden, Porsgrunn, Telemark, Norway

Titanite

Formula: 
CaTi(SiO4)O
Strunz: 
9.AG.15
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Titanite occurrence, Hauzenberg, Lower Bavaria, Bavaria, Germany

Allanite-(Ce)

Formula: 
{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Qáqarssuatsiaq, Aluk Island, Kap Farvel, Kujalleq, Greenland