24(i OCCURRENCE OF TIN IN NOVA SCOTIA. PIERS. 



Lake Ramsay and New Ross, the following unusually long list 

 of minerals have been detected in varying quantities: Cas- 

 siterite, monazite, one of the colunibite minerals, durangite,. 

 amblygonite, a lithium mica (probably lepidolite), wolframite, 

 scheelite, hiibnerite, molybdenite, sphalerite, beryl, apatite, 

 tourmaline, fluorite, pyrolusite, manganite, limonite, hematite, 

 magnetite, siderite, bismuthinite, argentiferous galenite, chalco- 

 pyrite, pyrite, arsenopyrite, kaolin, and crystals of light and 

 dark smoky quartz.* Some of these are rare minerals which 

 have a use in the arts and command a large price. Amblygonite 

 and durangite tare new to Canada. 



Concentration test. On 6th August, 1907, a sample of the 

 material from the deposit at Reeves' s pit at Lake Ramsay, con- 

 sisting of 14 bags, each weighing about 300 Ibs., was received 

 by Professor Frederic H. Sexton, director of technical educa- 

 tion, Halifax, from Neil A. King, in order that a test thereof 

 might be made. This lot of ore was stated to have been taken 

 directly across the deposit (<about 12 feet wide), from wall to 

 wall, at a depth of 18 feet, and represented the .average ore that 

 could be extracted from the pit at that depth. The lot was just 

 as it had been taken from the pit, except that the large crystals- 

 of quartz had been picked out, and it was said that about one- 

 fifth to one-sixth of the bulk of the ore in quartz crystals had 

 thus been removed by hand-picking. Professor Sexton 

 reports that the ore consisted for the greater part of transparent 

 vitreous quartz, quartz crystals, a soft friable lustrous greenish 

 feldspar, and soft kaolin from the decomposition of the feld- 

 spar by weathering agencies. Some lumps were stained a dark 

 red, indicating the weathering of pyrites, and Mr. King said 

 that such material contained the most tin. Muscovite in small 

 crystals was sparsely distributed throughout the ore. Sprinkled 

 through the ore were small dark crystals of tourmaline and 

 almost black fluorite. Cassiterite was not identified in any of 



* Faribault (E. R.). Loc. cit. 



