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Corundum

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NST630025

Corundum

Dipl. Ing. W. Maucher, Munich
Classic Locality

Description Tabs

Description
Locality: 
Craigmont Mine, Raglan Township, Renfrew County, Ontario, Canada
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.9 × 4 × 2.1 cm
Description

A late 19th century specimen of corundum with muscovite and oligoclase including a handwritten label of Dipl. Ing W. Maucher, Munich. The mountain was discovered as a source for corundum in 1876.

Mineral Data
What's on the rock

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
9.0
Streak: 
White