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Thorianite & Tremolite

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RMM867706

Thorianite & Tremolite

Radioactive

Description Tabs

Description
Locality: 
Millar's Mine, Monmouth Township, Haliburton County, Ontario, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 1 cm
Largest Crystal: 
0.80cm
Description

A sharp and shiny crystal of thorianite is on a matrix of tremolite from the Millar Mine.

One corner of the crystal is very slightly modified by the octahedron, the upper-right corner as shown in the header photo is deformed, and a third corner is slightly damaged. 

The identity of the species has been confirmed by EDS. 

 

Mineral Data
What's on the rock

Thorianite

Formula: 
ThO2
Strunz: 
4.DL.05
Hardness: 
6.5 - 7.0
Type Locality: 
Balangoda, Ratnapura District, Sabaragamuwa Province, Sri Lanka

Tremolite

Formula: 
☐{Ca2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Campolungo, Piumogna Valley, Leventina, Ticino (Tessin), Switzerland

Seller Information

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