The mineral as seen on the island presents many points of difference from that at Thetford and Coleraine; and in the Geological Survey of Canada, I find it is stated to consist of four varieties, viz.:--
1st. Small veins, rarely exceeding half an inch in width, the fibres not easily separable. This, however, does not detract from its commercial value.
2nd. Apparently occupying a position at right angles to the veins above noticed, is a coarse fibrous mineral, resembling rope, and evidently derived from the associated picrolite. The extreme length which these fibres may attain could not be determined, but judging from exposed portions, it cannot be less than three feet.
3rd. Veins somewhat resembling the latter in aspect, but much finer in texture. The fibre can be separated with great facility, though firmly attached at one end to the parent rock.
4th. A steatitic asbestos rock, resembling "Mountain leather," forming important masses, which enclose small concretionary pellets of asbestos, the centres of which contain a nucleus of serpentine.
Very little (the report says) has yet been done on the island to develop these asbestos veins, perhaps owing to the difficulty of transport across the lake. This, however, would probably be more than counterbalanced by the magnificent returns which this locality promises to afford.
Dr. Reed at present is altogether neglecting the asbestos and devoting his attention to the development of a very promising antimony mine on the shore of the lake.
Indeed this estate might very justly be termed a typical Canadian mineral estate, and is, in its way, unique, for comprised within its 2,000 acres, there are found to exist not only rich veins of antimony and asbestos, and, as was stated in the notice of Broughton, enormous quantities of soapstone, but there are also immense deposits of iron, magnetic, chromic, and bog ore, as well as copper and sulphur. Silver to the value of $4 per ton of ore is found with the antimony, and reefs of auriferous quartz run through the entire property, from which a practical miner from Australia, who was examined before the committee appointed in 1887 by the Dominion Government to investigate the gold-fields of Canada, stated that he had taken samples which on assay gave 2-½ ozs. gold to the ton. Nickel also is found on the property, and cobalt.