Mineral y and Geology of a part of Nova Scotia. 141 
rocks at this place, and then describe the minerals before al- 
luded to as occurring in them. The shore is fronted. by a 
steep bank of about one hundred feet high, from the base of 
which a slope of débris, detached by the frost, inclines down 
into the sea. One half of this bank consists of trap and the 
ether of red sandstone, intermixed with red shale. Upon it 
rests a ridge of columnar greenstone. These two rocks come 
f the primary obtuse rhomboid, sometimes so m 
ified, as to assume the lenticular hemitropic form represented 
in Phillips’ Mineralogy, p. 138. At other times, from the 
6 analcime, the heulandite is thickly implanted m 
small, but extremely brilliant pearly white crystals, which are 
transparent or translucent, and usually in the primary form, 
sometimes sli modified. 
The calcareous is. crystallized m very acute rhom- 
boids, of which scarcely two can be found possessing similar 
