70 A List of Minerals and Organic Remains. 
sahlite. —-Hawksbury, Ottawa. A very large rolled mass 
intermixed with quartz and containing imbedded sphene 
Common Augite.—Imbedded in the trap of Montreal 
mountain. Professor Silliman first detected this mineral in 
the above locality. It occurs in acicular crystals in the 
trap around the village of La Prairie, L. C. 
Coccoitte.—Fort Wellington, U. C. Montreal, on the 
shores of the St. Lawrence—green, in rounded grains in 
white calc. spar—rolled. 
Calc. spar.—Is found at the Grand Calumet on the Otta- 
wa, in primitive marble, in sky-blue transparent masses, 
with strie indicative of a cleavage parallel to the diagonal of 
its rhomb. White calc. spar occurs in veins in the gneiss 
of Cap Tourment, L. C. and very largely in the sienite 
and greenstone of Lake Superior. 
Marble.— West Branch of the Ottawa, leading towards 
Lake Nipissing four hundred and fifty miles north west 
from Montreal. Lake Chat, on the Ottawa, and the 
parts of that river about the Portages de la Montagne and 
Grand Calumet—in all these instances subordinate to gneiss. 
It occurs also in the neighbourhood of Berthier, forty 
miles north east from Montreal; and is frequent in the 
state of bowlders along the north shore of Lake Ontario, 
derived perhaps from the body of this rock existing at Mar- 
mora, up the river Trent. It is every where white, highly 
crystalline, and often contains galena minutely dissemina- 
e °. 
Satin Spar. In the Amygdaloid of Lake Superior at 
Point Marmoaze, and in the Pay Plat according to Major 
Delafield, who also found it in the trap of the Outard Cliff, 
overlooking the lake of that name, in longitude 90° 5’ 
north of Lake Superior. 
At Point Marmoaze it is in veins from a quarter of an 
inch to one inch thick, vertical, running obliquely to the 
stratification, several in company, nearly parallel, and ram- 
ifying rectangularly. These veins consist of two tables, 
separated by a rift in the middle. The fibres are usually 
perpendicular to the axis of the vein; rarely oblique. The 
mineral is white, with a slight tinge of red, occasionally. 
Fibrous Arragonite.—In compact secondary limestone 
at La Chine, eight miles west of Montreal, presented to 
me by Dr. Lyons. In veins one inch thick composed 
