^QQ REPORT ON NATIONAL MUSEUM, 1886. 



a few iiistauces for oriiameutal aicliitecture, aud has a rich appearance 

 when wrouglit. 



Three beds of serpeutiue are fouud iii Blauford and anotlier in I'el- 

 bam, in the southwest part of the town. The color of this hist is dark, 

 and the quantity of the talc is considerably large. A large bed occurs 

 iu connection with soapstoue on the north side of Deerfield liiver, in 

 Zoar, near the turnpike from Greenfield to Williamstown. Specimens 

 froui this place resemble those from the celebrated localities of this 

 rock at Zoblitz, in Saxony." Two beds of serpentine exist also at 

 Windsor, iu this State. 



"A locality of noble or precious serpentine has long been known to 

 exist in Newbury, 2i miles south of Newburyi)ort, at an abandoned lime 

 quarry called the "Devil's Deu." Ouly small masses can bo here ob- 

 tained, but when polished they will compare with any in the world for 

 beauty.* 



Perhaps tlie most interesting and important bed of this rock that has 

 as yet been found in the State is that at Lynntield, in Essex County.! 

 The bed has been traced from a point near the center of the town 

 some 2 or 3 miles in a northeasterly direction. When lirst cpiarried 

 the stone is said to be so soft that it can be cut with a handsaw and 

 very readily turned on a lathe. 



Ncic Jersey. — A beautiful deep-green and oil yellow, often translucent 

 seri)entiue, occurs, associated with dolomite, at Montville, in tliis State. 

 Only pieces of small size are obtainable, and though of exceptional 

 beauty the stone has never been utilized except for cabinet specimens.^ 



New Yorlc. — At Moriah, in Essex County, in this State, there has 

 been quarried from time to time under the mime of ophite marble a 

 j)eculiar granular stone consisting of an intimate mixture of serpentine 

 and dolomite or calcite interspersed with small flecks of phlogopite. 

 The rock varies from a linely granular granitic-appearing rock, consist- 

 iuf of about equal parts of serpentine and dolomite, to one in which the 

 serpentine patches are some 2 or 3 inches or even a foot in diameter; 

 The rock takes a good surface and polish, and by properly selecting the 

 material and exercising judgment in cutting, these variations in texture 

 can be made productive of very good effects. 



This same stone is also found at Port Henry and Minerva, in the 

 same county, and at Thurman, in Warren County. § 



It is stated II that the largest and most valuable deposit of serpeutiue 



* Hitchcock's Geology of Massachusetts. Vol. 1, p. 158. 



+ Hitchcock's Geology of Massachusetts, p. 159. 



\. This serpeutiue has heon receutly showu to he derived from a uou-aluuiiuous py- 

 roxeue. Proc. Nat. Mus., 1888, p. 105. 



vS Report of .Judges, U. S. Ceut. Ex., Vol. in, p. 158. 



II Geology of New York, 18:58, p. 205. The writer has recently shown that the Port 

 lli'ury and Warren County ophiolitea are altered pyroxenic limestones, Am. Jour. 

 Sci., Mar., 1889. 



