Localities of Minerals. 25 1 



or five inches in diameter. It is principally liornstone; its 

 cavities are lined with minute quartz crystals and layers of 

 chalcedony. It is of a grey or black color — specific gravity 

 2.6. 



7. Fibrous Carbonate of Lime, in bituminous limestone, 

 exists here. 



8. The Rose Quartz is south-west of the meeting-house 

 about three miles, and is in great quantities. It requires 

 blasting, however, to obtain good specimens.* 



9. Laminated Feldspar, of a pearly white color, is found in 

 Bethlem, resembling in external characters the siliceous 



feldspar of Chesterfield. 



10. Plumose Mica, in Woodbury and Washington. 



11. Zeolite, in reniform masses of ntinute fibres, and in 

 fascicular groups of fibrous crystals — in a vein in mica slate. 

 Litchfield. 



12. Fetid Quartz, in Litchfield, well characterized — of a 

 dark greyish blue, (the common color,) and of a pure white, 

 (the last, I believe, an uncommon color for this variety.) 



13. Finite. Litchfield. Specific gravity 2.768 — infusi- 

 ble—massive — imperfectly foliated— cross fracture uneven- 

 color dark brownish green — fissures stained by iron — soft, 

 easily scratched with a knife — powder unctuous — streak 

 white. Spangles of a hexagonal or nearly circular form 

 appear on the fracture when held to the light. Lustre of 

 the cleavage, ghstening — of the fracture, dull — adheres to 

 the tongue. 



Some imperfect crystals appeared on the surface of the 

 mass — apparently six-sided prisms, truncated on all the an- 

 gles, and, in consequence, having a cylindrical form. Asso- 

 ciated with quartz, mica and oxide of iron. 



REMARK. 



The Editor's opinion being requested, respecting the 

 last mentioned mineral, he has to add nothing more, than 

 that he coincides in opinion with Mr. Brace, and that there 

 is a great resemblance between the Litchfield pinite and 

 that of Haddam. — Ed. 



*Dr. L. Smith will supply, in exchange, any gentlemen with the South- 

 bury mineral?. 



