Geology, &c. of the Connecticut. 221 
exists in crystals half an inch in diameter and often four or 
five inches long, sometimes terminated by three-sided pyr- 
amids, in common white quartz. The contrast renders the 
specimens quite beautiful, and one large loose mass lies on 
the surface nearly iwo feet in diameter, which would be an 
ornament to a mineral cabinet. 
2. Green Tourmaline. At Chesterfield and Goshen, Mass. 
(Gibbs.) These interesting localities have been so well 
described by Col. Gibbs, as to render — farther remarks 
unnecessary. (Am. Jour. Vol. I. p. 346 
3. Indicolite. At Chesterfield and Goshen. (Gibbs.) 
At Bellows Falls. (Sildiman.) At Hinsdale, New-Hamp- 
shire, in granite, in great abundance. (J. 4. Allen.) This 
locality is found _ sty ron by noe the road from Hins- 
dale to Wincheste 
35. Rubellite. At Chesterfield wt CadieasNisek: (Gibbs. ) 
See his account in the Journal of Science, as above cited. 
36. Feldspar. 
1. Common Bekiqpor. Near Haddam, greenish and trans- 
lucent. (McEwen.) » In the same vicinity itis of a light flesh 
color, and in large masses in granitic veins and beds. Also 
of the same color in pudding-stone, Deerfield. Also in large, 
bluish, imperfect crystals, in granite, Leverett. It occurs, 
of course, abundantly in all that ae of the map colored as 
granite, gneiss and sienite. 
. Adularia. At Haddam. (T. D. Porter.) At West- 
Sprivetfield and Southampton lead mine. (W. aterhouse.) At 
Brimfield. (Eaton.) 
‘ighe Sihictous Feldspar. (Gibbs.) At Chesterfield, Mass, 
and Haddam. (Gibbs.) Also at Goshen—a new variety, 
discovered by Dr. Hunt. 
. Precious Emerald. At Haddam? For a discussion of 
this “hele whether this mineral exists in te United States, 
see Cleayeland’s Mineralogy, Vol.-t.p..3 
