parent, it would afford a hyacinth-yellow gem, rather low in hardness.
Apatite,
which has added so much to the mining industry of the Dominion, is
found there in greater quantity and in finer crystals than in any other
country. The crystals are often of great size and perfection, one
famous crystal from the Emerald Mine, at Buckingham, Que., weighing 550
pounds. Magnificent crystals are found throughout eastern Ontario, on
the shores of Lake Clear, several feet in length and of fine color; at
Sebastopol and elsewhere throughout Renfrew County; and at Wakefield,
Tem-pleton, Portland, and Buckingham Townships, Ottawa County, Que. The
crystals are often partly transparent, and are of all shades of
red-brown, brick-red, and often rich, deep green, especially in Ottawa
County, in which case they should be adapted to some of the uses of
fluorite as ornamental stones.
Wilsonite
is found in Bathurst and Burgess, Ont., and Ottawa County, Que., in
masses of some size, associated with sea-polite. The specimens are
beautiful, the minerals often passing into each other. The rich,
purplish-red color of this mineral, and the fact that it admits of a
good polish, make it one of the most interesting of gem minerals.
Fluorite
is occasionally found in purple crystals measuring several inches on a
face, associated with and on the Lake Superior amethyst. Green and
purple fluor often fills mineral veins in the Lake Superior region, and
veins in syenite opposite Pic Island, on the mainland. On an island
near Gravelly Point, in a porphyry, it occurs in green octahedral
crystals, with barite; in green cubes associated with calcite and
quartz at Prince's Mine, Ont.; and in small, beautiful crystals near
Hull, Que. Fluor spar of a beautiful blue color is found at Plaster
Cove, Richmond County, N. S., and also on the west side of the harbor
of Great St. Lawrence, Newfoundland. Small purple crystals of great
beauty are occasionally found on pearl-spar in the geodes at Niagara
Falls, Ont., and elsewhere in the Niagara formation. A green, compact
variety occurs in white calcite associated with galena, in veins
cutting the Potsdam sandstone, at Baie St. Paul and Murray Bay, Que.,
which would work into an ornamental stone. It is found frequently all
through the Laurentian
