352 SUPPLEMENT TO DESCRIPTIONS OF SPECIES. 



calamine, vanadinite, blende ! mimetite ! descloizite, gothite, chryso- 

 colla, native copper, malachite, azurite, limonite, calcite, sulphur, py- 

 rite, melacoaite, pseudomalachite, gersdorifite, chalcocite ? covellite. 



Thorxbury. — On Jos. H. Brinton's farm, muscovite containing acic- 

 ular crystals of tourmaline, rutile, titaniferous iron. 



Tredyffrlx. — Pyrite in cubic crystals loose in the soil. 



Uwchlax. — Massive blue quartz, graphite. 



Warren —J/W i n it,:, feldspar. 



West Goshen (one mile from West Chester). — Chromite. 



Wlllistown. — Magnetite, chromite, actinolite, asbestus. 



West Town. — On the serpentine rocks, 3 miles S. of West Ches- 

 ter, clinochlore ! jefferisUe! mica, asbestus, actinolite, magnesite, talc, 

 titaniferous iron, magnetite and massive tourmaline. 



East Whiteland. — Pyrite, in cubic crystals, quartz crystals. 



West Whiteland. — At Gen. Trimble's iron mine (southeast^, stal- 

 actitie hematite ! icaeellite ! ! in radiated stalactites, gibbsite, cceruleo- 

 lactile. 



WARWICK. — At the Elizabeth mine and Keim's old iron mine 

 adjoining, one mile X. of Knauertown, aplome garnet/ in brilliant 

 dodecahedrons, fiosferri, pyroxene, micaceous hematite, pyrite in bright 

 octahedral crystals in calcite, chrysocolla, chalcopyrite massive and in 

 single tetrahedral crystals, magnetite, fascicular hornblende I bomite, 

 malachite, brown garnet, calcite. byssolite ! serpentine : near the village 

 of St. Mary's, magnetite in dodecahedral crystals, melanite, garnet, 

 actinolite in small radiated nodules ; at the Hopewell iron mine, one 

 mile ^N. W. of St. Mary's, magnetite in octahedral crystals. 



COLUMBIA CO. — At Webb's mine, yellow blende in calcite; near 

 Bloomburg, cryst. magnetite. 



DAUPHIN CO.— Near Hummelstown. —Green g-arnets, cryst. 

 smoky quartz, feldspar, micaceous hematite, siilbite. chrysocolla. 



DELAWARE CO. — Aston Township. — Amethyst, corundum, erne- 

 rylite. staurolite. fibrolite, black tourmaline, merrgarite, sunstone, asbes- 

 tus. anthophyllite, steatite ; near Tyson'o mill, garnet, staurolite ; at 

 Peter's mi 11 dam in the creek, pyrope garnet. 



Birmingham. — Fibrolite, kaolin (abundant), crystals of rutile, ame- 

 thyst ; at Bullock's old quarry, zircon, bucholzite, nacrite, yellow crys- 

 tallized quartz, feldspar. 



Blue Hill. — Green quartz crystals, spinel. 



Chester. — Amethyst, black tourmaline, beryl, crystals of feldspar, 

 garnet, cryst. pyrite, molybdenite, molybdite, chalcopyrite, kaolin, ura- 

 ninite, muscocite, orthoclase. bismutite. 



Chichester. — Near Trainer's rnilldam, beryl, tourmaline, crystals 

 of feldspar, kaolin ; on Wm. Eyre's farm, tourmaline. 



Concord. — Mica, feldspar, kaolin, drusy quartz, meerschaum, stel- 

 lated tremolite, anthophyllite, fibrolite, acicular crystals of rutile. py- 

 rope in quartz, amethyst, actinolite, manganesian garnet, beryl; in 

 Green's creek, pyrope garnet. # 



Darby. — Blue and gray cyanite, garnet, staurolite, zoisite, quartz, 

 beryl, chlorite, mica, limonite. 



Edgemont. — Amethyst, oxide of manganese, crystals of feldspar; 

 one mile east of Edgemont Hall, rutile in quartz. 



Green's Cbeek. — Garnet (so-called pyrope). 



Ha verford.— Staurolite with garnet. 



