Miscetlaneous Localities of Minerals. 235 
Black schorl in milk white quartz, abun- 
dant. ; 
Loisite, 
Epidote, } Hanover, N.H. 
Yellow and blood-red ferruginous quartz, 
—quartz rock. 
ae Enfield, N. H. 
reen quartz. 
7. By Cuantes W. Sueparp. 
Schorl, in large masses, not regularly crystallized, but 
exhibiting a crystalline tendency, Pelham, Mass. 
Black mica, fine specimens, do. 
Green Hornblende, do. 
Compact Asbestos, do. 
Enpidote, do. 
Actynolite in Asbestos—and likewise a granular variety 
of the same mineral, in large masses—the grains equalling 
in size the grains of coarse gun-powder, and very easily 
separable. Its granular structure may be the result of semi- 
disintegration. Do. se 
The most interesting mineral from Pelham, however, is 
one which is, undoubtedly, a sub-species of quartz. It 
strongly resembles chalcedony. It possesses but little lus- 
tre. Its fracture is nearly even, somewhat splintery, and 
flat conchoidal. It breaks readily under the blow of the 
hammer, into large, indeterminate, sharp-edged fragments ; 
sometimes exhibiting concretions. Its colour is leek-green, 
uniformly diffused, excepting, occasionally, small whitish 
dots, which are distributed through the mass at nearly 
equal distances. It is translucent. Before the blowpipe, 
it loses its colour, and becomes white. Should it belong 
to the sub-species chalcedony, itis the variety called Plas- 
ma, a mineral which has not, hitherto,been found in the Uni- 
ted States. It was discovered in digging a cellar, in a 
rounded mass, upwards of two feet in diameter, 
Native Alum, in mica slate, Ware, Mass. 
Brown Spar, associated with amethyst, found by Mr 
Alonzo Chapin, West-Springfield, Mass. 
Amherst, Mass. March 31. 1824. 
