On the Mineralogy of parts of Delaware, fyc. 1 1 



DELAWARE. 



New Castle County. 



Phosphate of lime, in granite, of a bluish green color, in 

 hexahedral prisms, occasionally longitudinally striated, 

 from T \ to one and a half inches in diameter, and from 

 half to two inches in length, abundant on a farm adjoin- 

 ing Wistar Dixon's east, and about six miles from Wil- 

 mington. 



Beryl, of a fine apple green color, in hexahedral prisms, in 

 granite, on a farm adjoining Dixon's, and near the serpen- 

 tine ridge. 



Precious garnets, in granite, of a brilliant red color, in dode- 

 cahedrons, on Dixon's farm in the wood near the house. 



Schorl, of a dark red color, in cylindrical crystals, in granite, 

 same locality. 



Brown and red hematite, on the serpentine ridge, near. 



Jasper, of a reddish brown, and yellowish color, forming 

 veins, in serpentine, Dixon's farm. 



Quartz, of a reddish brown color, in six sided prisms, ter- 

 minated at both extremities, by six sided pyramids, re- 

 sembling the quartz of Compostella, same locality, also, 

 near the Centerville turnpike. 



Drusy quartz, limpid, yellow and green, in beautiful clusters 

 of minute crystals, same locality. 



Feldspar. An extensive bed of this mineral, occurs adjoining 

 Dixon's farm, the land containing it has lately been pur- 

 chased by Mr. W. E. Tucker of Philadelphia, who em- 

 ploys the article extensively in the manufacture of porce- 

 lain ware. This ware of which the feldspar, is an impor- 

 tant constituent, has been . brought to such perfection by 

 Mr. William E. Tucker, that it is pronounced by compe- 

 tent judges, to possess a soundness of body, smoothness of 

 glazing, and beauty of lustre, fully equal to the imported, 

 and surpasses in purity of whiteness, either the French 

 or English china, which is met with in our market. 



Epidote, massive, and crystallized, in primitive hornblende, 

 on the Kennet turnpike, near the Buck tavern. 



Lamellar hornblende, possessing somewhat the lustre and 

 colors of the hypersthene, same locality, 



