MINERALS OCCURRING IN CANADA. 87 



as ocLuniug in the ciystalliue limestone of the township of Grenville, Argeuteuil 

 county, province of Quebec. 

 12 Y. Hypersthene— Occurs, in broad himelUir masses, with andésite and ilmenite, con- 

 stituting a rock, at Château Richer (Montmorency Co.), and in the parish of St. 

 Urbain, near Bay St. Paul (Charlevoix Co.), in the province of Quebec. Also (Paulit) 

 tit Paul Island, Nain, coast of Labrador. Anal., T. S. Hunt, «col. Can., 1803, p. 468. 



128. ICELAND-Si'AR — Fine cleavable and transparent masses of calcite occur at Harrison's 

 location on St. Ignace Island, Lake Superior, and in the township of Galway (Peter- 

 borough Co.), province of Ontario. 



129. Il!\ienite — Occurs in vast beds or masses in anorthosite rock in the parish of St. 

 Urbain, at Bay St. Paul (Charlevoix Co.), and in a similar rock in Château Richer 

 (Montmorency Co.), and in Rawdon (Montcalm Co). Large deposits, associated with 

 labradorite rocks, have also been observed near the mouth of Rapid River (Bay of 

 Seven Islands), on the Saguenay River, on the shores of Lake Kenogami, and it has 



. also been met with in several other localities in the province of Quebec. Analyses, 

 T. S. Hunt, Geol. Can., 1863, p. 501, and Rep. Geol. Can., 1866-69, p. 260. 



130. Ilvaite — A substance which, from its composition and jihysical characters, was 

 regarded as a variety of lievrite, was found in the form of a boulder, in the vicinity 

 of Ottawa (formerly By town), Carleton county, province of Ontario. Description and 

 analysis, T. S. Hunt, Geol. Can., 1863, p. 405. 



131. Infusorial earth — Is found occupying the bottoms of lakes in several of the 

 counties of the maritime provinces. The deposits are not uufrequently of consider- 

 able depth, and the earth remarkably pure. Some of the more important localities 

 are — Fountain Lake, Amherst (Cumberland Co.), Folly Lake (Colchester Co.), and 

 Merigouish (Pictou Co.), in the province of Nova Scotia, and Fitzgerald Lake, about 

 seven or eight miles from St. John (St. John Co.), Pollet Lake, Mechanic Settlement, 

 and Pleasant Lake, about six miles to the south-west (King's Co.), in the province of 

 New Brunswick. Anal., G. C. Hoffmann, Rep. Geol. Can., 18*78-*79, p. 4 H. 



132. Iridosmine — Occtirs, as first observed by Dr. T. S. Hunt, in the form of small 

 hard steel-grey plates, associated with the native platinum found in the gold wash- 

 ings of the Rivière du Loup, Beauce county, province of Quebec. 



133. Iron-ochre — Extensive deposits of iron-ochre (var. limonite) are met with in 

 numerous localities in the province of Quebec. A remarkable deposit of this material 

 is fovtnd in St. Anne (Montmorency Co.), and very large beds of the same occur in 

 Cap de la Madeleine (Champlain Co.), and in Pointe du Lac (St. Maurice Co). 

 Amongst other places, where dei)Osits of more or less importance occur, may be men- 

 tioned the counties of Bouaventure, Joliette, Laval and Vaudreuil. In the province 

 of Ontario, beds of ochre are met with in Walsingham (Norfolk Co.), Esquesing 

 (Halton Co.), Sydenham (Grey Co.), Nottawasaga (Simcoe Co.), and other townshijis. 

 Chemical examination of iron-ochres, T. S. Hunt, Geol. Can., 1863, p. 512. 



134. Iron sand — Occurs at St. Mary's Bay, Digby county, province of Nova Scotia. 

 Considerable deposits of the same are met with at Moisie, Portneuf, Bersimis, 

 Mingan, and Natashquan, in Saguenay county, and at Batiscan, in Champlain 

 county, and elsewhere in the province of Quebec. It is also found on the shores and 

 islands of Lakes Superior, Huron, Erie, Ontario, and many of the smaller lakes in the 



