Miscellaneous Localities of Minerals. 255 



sometimes, in bundles and globular masses, and radiating 

 from a centre &;c. This Mineral Prof. Dewey calls Zeolite^ 

 but I cannot succeed in forming a jelly with acids.* Proba- 

 bly both stilbite and zeolite are found at this locality 



Carb. Lime occurs at the same locality with the two last, 

 in six sided tables and six sided prisms, truncated lightly on 

 every solid angle. Also in lenticular crystals or thin 

 scales, variously grouped. The three last jnentioned occupy 

 fissures and veins in the mica slate, about one mile east of the 

 meeting house in Chester. This locality is interesting both 

 for the minerals, and the situation and relative position of the 

 rocks, of which something will be said hereafter. Beryl, 

 Norwich, one crystal in my possession, is about five inches 

 in diameter, and is intersected on one of its lateral faces by 

 another at an angle of about 45°. Likewise found in Ches- 

 ter in an aggregate of carb. lime, chlorite and feldspar, colour 

 yellowish green and white. The beryl in Norwich is about 

 Haifa mile west from Pitcher's bridge, near a mass of white 

 rocks, to be seen from the bridge. Prismatic and Tabular 

 mica extremely abundant at those rocks, and very beautiful; 

 rocks are a coarse granite and contain schorl (Indicolite ?) 

 in abundance, (Powder deep blue). Garnets and stauro- 

 tide, of every variety, abound in this region in mica slate. 

 Cyanite, a curious variety occurs here in a very fine, soft^ mi- 

 ca slate, (resembling potstone,) often in hemitrope crystals, 

 color greyish blue. 1 forwarded a specimen in the box of 

 minerals sent sometime since. I have discovered one large 

 specimen o( ferruginous oxyd of titanium in granite, or, I 

 ought to say, a mass of granite containing 20 or 30 imper- 

 fect crystals ; likewise I have seen the oxyd of T. in 

 flat plates in mica slate. Though I do not mention these as 

 occuring here with the same confidence as I do the others. 



Augite is abundant here in amorphous masses. 1 have 

 found a ^ew specimens of well characterized sahlite and 

 coccolite. They occur in beds in the mica slate, both at 

 Chester and Middlefield. Magnetic oxyd of iron is a'' un- 

 dent, disseminated in serpentine, mica slate, &z.c. ; form, oc- 

 taedral crystals and amorphous masses. Rhomb spar, 

 (Middlefield,) in Dolomit-e or magnesian carb. lime; it con- 

 tains a large proportion of magnesia. I have discovered a 



* Perhaps the proportions were not right. 



