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Lead Mines, &e. of Hampshire County, Mass, 245 
stone, and runs northerly almost’across Whately ; the junc- 
tion of the greenstone and granite ma seen, and the 
greenstone is the granite, wanting the feldspar and mica, (and 
substituting hornblende ?>—Ed. 
The best place for viewing this greenstone, is found by 
starting west from the congregational meeting-house in 
Whately. The first rock we come to is greenstone in a range ; 
then we strike a range of mica slate, then again, the green- 
stone, and so on, alternately for a mile. Bevtads the north 
part of the town, the greenstone has considerable of the sien- 
itic granite associated with it, but soon disappears, leaving” 
mica slate in its stead, 
Perhaps I —_ to mention, that sienite, sienitic granite, 
and reeustone, are occasionally seen in blocks and. 
boulders in Williamsburgh. The. sienitie granite contains 
one metallic vein at Hatfield, and in its vicinity I have often - 
noticed druses studded with quartz crystals; sometimes also™ 
I have seen druses in this rock, though not in the vicinity of 
the mine 
Talcose Slate—pale red. 
_of no patch or stratum of this rock nearer Connec-_ 
ticut river than Cummington, although in excavating: the” 
earth and on_ its surface, and in the bottom of brooks, we™ 
meet with good specimens in Williamsburgh, indicating that’ 
here was once a stratum, which has been destroyed or bro-=" 
ken up, by.some agent, adequate to the work. The speci~" 
mens. found with, us are all full of small garnets, which are’ 
often beantifile Meacignlng 3 is seen in the west part of Cum- 
north of Hubbard’s leather manufactory, in a- 
perfect steatite ; the tale traverses the steatite in 
may be easily cut out witha chisel. Along with this tale are’ 
found anal shoo <a ae eae 
which I took to be 
by ch ou’ 
by.the mica. slate. The iron mme of Hawley. an and 
pies ai te of manganese of Plainfield and-Cum- 
ington are atthe junction of. the mica: and. talcose slate, 
arnets as. well as fascieulite, and has much the same appear~" 
Seonanshes seen at Williamsburgh ; indeed, I believe it to be 
