Sulphuret of Antimony, &e. in Haddam, Conn. 157 
planes, which are deeply striated lengthwise. They are ea- 
sily susceptible of cleavage parallel to their primary planes, 
but in no other directions. It is of a dark green color, and 
nearly opaque, but by transmitted light, when viewed thro’ 
a small fragment, presents a fine blueish green color. Its 
hardness is rather above that of quartz, and its specific gravi 
ty 4.38. Before the blow-pipe it is infusible. 
The Pleonaste occurs in small octohedral crystals, and is, I 
believe, pretty generally distributed through the Pinite of 
this locality, as I noticed but few specimens that did not con- 
tain more or less of it. Its color is black; and lustre 
splendent. 
Some time ago, Dr. Wells of Windsor, Mass. gave me a 
mineral for examination, which he found in his neighbour- 
hood. I find it to be Laumonite. The following are its 
characters. It exists in slender prisms, apparently rhombic, 
traversing in various directions a yellowish talc ; the Lau- 
monite constituting the greater part of the mass. _ It possess- 
es a pearly lustre; is white, opaque, and of sufficient hard- 
ness to scratch glass. Before the blow-pipe, it intumesces, 
and fuses into a colorless glass. : : 
The same gentleman has subsequently presented me sj 
cimens of a beautiful columnar Bitterspar, from Florida, 
(Ms.) It is intermingled with asbestos, and closely resem- 
bles this mineral from Miaska, in Siberia. 
In Maine, at Norway, upon the road from Paris to Water- 
ford, are found, in Gneiisoid Hornblende rock, crystals of 
Phosphate of Lime, of a greenish white color, imbedded in 
calcareous spar, and accompanied by Pargasite and Sphene. 
'yrowene occurs very abundantly at Belchertown, (Mass.) 
It exists in laminated masses, rarely inw crystals ; 
and composes the greater part of the rock in which it occurs 
the remainder consisting of Feldspar and Hornblende, with 
occasional crystals of Sphene. 
The following uncertain substance, from Goshen, (Ms.) 
has long been in my possession ; an account of which, 
now induced to give, for the purpose of directing the atten- 
tion of those Mineralogists to it, who may hereafter visit that 
interesting spot. IT met with it in breaking up a small rock, 
containing blue Tourmalines, Rubellite and Spodumene. 
These are its characters. It possesses a very imperfect crys- 
talline structure, having occasional appearances of cleavage 
parallel to the sides of an oblique rhombic prism.~ Its ¢ 
is uniformly a delicate pink, closely resembling the color of 
