Cienth.] 40J [August IS, 



Mr. Oswald J. Ileinrich, near Drifton, Luzerne county, in the Tomhicken 

 Basin, which lies 75 feet above *he Buck ^lountain seam. 



Another variety of pyrophyllite, which has the appearance of kaolinite, 

 has also been found by Mr. Heinrich, near Drifton and Gowen, in the Buck 

 Mountain seam. He has favored me with the following data, relative to its 

 occurrence. 



It is found principally in the upper bank of the seam which has a thick- 

 ness of 5 to 6 feet and does not only occur in the planes of stratification 

 and fissures, but even in the most compact anthracite. It has accumu- 

 lated especially in layers or lenticular patches of from one-half to over one 

 inch in thickness in the slate bank which divides the upper from the lower 

 bank, and which has a thickness of from 8 to 15 inches, sometimes in- 

 closing a few inches of anthracite. It is white or yellowish-white, com- 

 pact, cryptocrystalline, slightly soils the fingers. Soft. Does not in the 

 least exfoliate or expand on strong ignition. Sp. gr. ^ 2.813. 



Not decomposed by sulphuric acid. The analysis of that from Cross 

 Creek Colliery, near Drifton, Luzerne county, gave : 



SiO,, = 65.77 



AlA = 39.36 



FcPs = 0.13 



H„0 = 4.85 



100.10 



IX. Beryl from Alexander Co., iV. C. 



Many beautiful vniieties of beryl have lately been found in Alexander 

 county, N. C, and Mr. Wm. Earl Hidden especially has brought to light 

 many of the most interesting specimens. To him I am indebted for a 

 fragment of a rounded pebble which has a slightly leek-green color, turn- 

 ing brown by oxidation. It has a pretty distinct cleavage in one direc- 

 tion. Its specific gravity was found to be = 3.703. The analysis proved 

 it to be beryl. It contained : 



Mr. W. E. Hidden found in the " Hiddenlte " vein, Alexander county. 

 N. C, associated with quartz, white orthoclase and little mica, small 

 brownish-red, brownish-yellow or light brown crystals, which have the 

 appearance of a partial decomposition or hydration, and a resinous lustre. 



