_Chlorite_--in Shutesbury: also in amygdaloid, Deerfield. In Deerfield academy there are some Indian pipes of this mineral, well wrought. _Green Earth_--in small quantities, in amygdaloid, Deerfield. _Schorl_--the black variety occurs in Pelham, Shutesbury, and Orange, Mass., and in Brattleborough, Vermont. _Epidote_--in Deerfield, Shutesbury, Leyden, and Pelham, and in Athol, Worcester county. The specimens poor. _Tremolite_--in the west part of Leyden, near Green river. The rock in this region is chiefly mica slate, and the quantity of tremolite is very great. Tons of it might be easily collected. _Cyanite_, or _Sappare_--in Deerfield, in mica slate; discovered by Dr. S. W. Williams. _Actynolite_--rare, found in Shutesbury. _Serpentine_--found in Leyden in rolled masses. Some of the specimens admit a fine polish, and the ground is handsomely variegated. It has not been noticed _in situ_. _Asbestus_--compact, in Pelham. _Garnets_--very plenty in Conway, Deerfield, Shelburne, &c. Good specimens of the melanite occur in Conway. _Native Alum_--in Leyden, in small quantities, efflorescing on argillaceous slate. _Sulphur_--in Conway, Shelburne, and Warwick, efflorescing on mica slate. _Prehnite_--in greenstone, Deerfield, encrusting the columns and in radiated masses, but rarely crystallized. The veins of it, when in place, are nearly perpendicular. _Zeolite_--in same place, not abundant. Some good specimens of the radiated variety are found. _Chabasie_--in same place, considerably abundant. No crystals have yet been found whose sides exceed a quarter of an inch. It occurs in the veins of the greenstone, in geodes, on balls of zeolite, on chalcedony, on lamellar quartz, &c. _Stilbite_--in same place, not abundant. It is commonly associated with chabasie, and the crystals, though small, are well defined. _Analcime_--in same place, very abundant, and is associated with quartz and amethyst, which are sometimes enclosed by analcime. It generally occurs in cylindrical, reniform, and radiated masses. A few perfect crystals only have been observed. _Laminated Calcareous Spar_--in the same place, not uncommon. Chalcedony, carnelian, agate, amethyst, prehnite, zeolite, chabasie, stilbite, and analcime, have been found nearly in the same place; and it may not be amiss to observe, that this spot is distant from Deerfield Academy about one mile, and bears from the same, by a true meridian, E. 2°, 15′ S. _Iron Sand_--found in considerable quantity near the falls in Connecticut river, on the Montague shore. _Sulphate of Iron_--in Conway, in small quantities, efflorescing on mica slate. _Sulphuret of Iron_--in Halifax, Vermont, in abundance; also in Charlemont, Mass., Deerfield, &c. _Magnetic Oxide of Iron_--very common in the region west of Connecticut river. I have observed it in Athol, Worcester county. _Specular Oxide of Iron_--some veins of this ore occur in Hawley, Bernardstown, and Warwick, and have been wrought to a small extent.