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colour is the coppery or fiery red, and in cut sto '.ts, with convex sur- 

 faces, this mineral will vie with the Fire Opal. 



Ohsidia?! is a volcanic glass, often beautifully n;nti]ed with various 

 colours. The Canadian varieties, however, are usually dark. It is 

 found in British Columbia and Nova Scotia, at the latter place in small 

 rounded pebbles, coated with a blue mineral embedded in Amygdaloid. 

 These when cut lake a brilliant lustre and are jet black, sometimes 

 bordering on blue. 



Chrome Pyroxene, which is found associated with the Chrome 

 Garnet in the Township of Orford, is occasionally of an emerald green 

 tint and semi-transparent and might afford small gems. In the Town- 

 ship of Wakefield, at the other Chrome Garnet locality, a massive sea- 

 green variety interspersed with emerald green dots occurs. It takes a 

 high polish and could be utilized for ornamental purposes. 



Scapolite. This mineral is found widely distributed in the Lauren- 

 tian, of various colours, such as pink, lilac, bluish, yellow and white, 

 and when sufficiently clear from cleavages, cracks and foreign minerals, 

 takes a good polish, making rather a neat and pretty gem stone. 



Wilsonite, which is mentioned as a material suitable for gems, is 

 occasionally found of a pink colour, associated with Scapolite and from 

 which, according to some authors, it has resulted. The difficulty with 

 th s mintril, is to get it suff.tiently frte from foieign inclusions, which 

 are generally of a harder nature, and consequently after being polished, 

 stand out in relief. I have also noticed that its colour after exposure 

 to the air for some time becomes much paler. This mineral is of fre- 

 quent occurence in the Apatite deposits of Ottawa County, the best 

 specimens however, come from the Township of Bathurst. 



Hypersihene as a gem material was introduced some time ago by 



the French jewellers. It is said to take a high polish, with an 



ridescence of co{>per, red, bright brown, gold yellow, and greenish 



shades. Dr. Feuchtwanger says he saw a stone of this nature, twelve 



lines long and six broad, sold in Paris for 120 francs. 



This mineral is of trequent occurrence in the Anorthosite rocks of 

 Canada. 



Idocrase or Vesuvianiie is cut occasionally at Naples, and there 



^^ sold under the name of Italian Chrysolite, where it occurs in trans- 



^'Y parent green and brown crystals. The Canadian Idocrase, observed in 



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