262	GEMS AND PRECIOUS STONES IN THE
	especially in veins with amethyst in the Lake Superior region, but not of sufficient size to afford crystal balls or other art objects. The small, doubly terminated crystals found in the limestone of the Levis and Hudson River formations, and lo­cally called " Quebec diamonds," are sold as souvenirs to tourists. Fine crystals are found in the soil in Lacolle, Que., and beautiful limpid crystals in the cavities of the calciferous formations in many places. Larger crystals have been found with smoky quartz near Paradise Bay, N. S., also in the geodes on agate throughout the entire Bay of Fundy district, and on the Musquash River, N. B., at Cape Blomidon, N. S. Milky quartz is found all through Canada, but it is never of any value in the arts except for por­celain. Rose quartz is also found in many localities, especially at Shelburne, N. S. It has little value in the arts, but has been made into various ornaments and charms. Smoky quartz in fine groups occurs in the same veins with amethyst on both Lake Su­perior and the Bay of Fundy, so uneven in color, however, as to afford gems of little value. It has been found in immense crys­tals in the vicinity of Paradise River, also near Bridgetown and Lawrencetown, Annapolis County, N. S., from a light yellow color to the dark, smoky '* cairngorm." Dr. How mentions a crystal 13 inches high and 6 inches in diameter. Single crys­tals, weighing 100 pounds each, have often been obtained from the decomposing granite and have been piled up with the stones from the fields, near Paradise River, and loose in the soil. It occurs in crystals about 2 inches in length at Mill Village, Lunenburgh County, N. S., and at Margaret's Bay, Halifax County, N. S. In King's College cabinet there is a specimen of the almost black variety known as " Morion," with crystals 1/2 an inch across. Amethyst is found in some form in nearly every vein cutting the cherty and argillaceous slates around Thunder Bay, on the north shore of Lake Superior. At Amethyst Harbor this min­eral constitutes almost the entire vein, and numerous openings have been made to obtain it for tourists who visit the spot. Thousands of dollars' worth are annually sold here, and as much more is sent to Niagara Falls, Pike's Peak, Hot Springs, and other tourists' resorts, as well as to the mineral dealers. Surfaces several feet across are often covered with crystals from 1/4 inch