Mineralogical Journey. 353 
Arr. XII.—WMineralogical Journey in the northern parts of New 
England, by Cuantes Urnam Suerarp; Assistant to the Pro- 
fessor of Chemistry and Mineralogy, and Lecturer on Botany in 
Yale College. 
Ix the months of September and October last, Dr. Heermann of 
New Orleans, and myself, made an excursion into Vermont, New 
Hampshire, and Maine, in company with Prof. Hitchcock of Amherst 
College, and Mr. Edward Emerson of Boston; the two latter gen- 
_tlemen were with us only as far north as Acworth, N. H. At the re- 
quest of Prof. H. and Dr. Heermann, I shall give in the sueceed- 
ing pages some account of those minerals which gave us particular 
interest upon the route. 
1. Marlborough and New Fane Minerals. 
At Marlborough, Vt. under the guidance of Rev. Mr. Newton, 
we visited the soapstone quarry, which affords such remarkably dis- 
tinct crystals of Bitter spar, and Octahedral Iron ore in Chlorite ; 
and the localities of Chrysoprase and Actynolite in the border of 
New Fane. The Chrysoprase of this spot, discovered by Gen. Field, 
has been known for many years. It exists in narrow frequently 
interrupted seams traversing Serpentine, accompanied by delicate 
druses of Quartz, and small quantities of Pimelite and Asbestus. Itis 
considerably inferior to the Chrysoprase of Silesia, in the beauty of 
its fracture and translucency, though sometimes vying with it in color. 
We were more interested in the small crystals of Quartz, tinged 
throughout of a deep apple green color, by the same coloring matter 
that tinges the chalcedony in the Chrysoprase, and the clay in the 
Pimelite. These, regularly terminated at both extremities, like the 
Compostella Hyacinths, were often found variously attached to each 
other, filling up small seams and cavities in the Asbestus and Serpen- 
tine, which when broken open, presented surfaces of several square 
inches of unusual beauty. This is the only known locality, furnish- 
ing this variety of Quartz. The Actynolite, which as situated at a 
distance of four or five miles from the Chrysoprase, 1s easily obtain- 
ed, and closely resembles the same mineral from many other places. 
Itis the more beautiful from the nearly white color of the Talc in 
which it is imbedded. : : 
We did not visit the deposit of Garnets in Chlorite slate a lit- 
tle north of the village of New Fane. But we had an opportunity of 
Vou. XVII.—No. 2. 18 
