Geology and Natural History. 399 



e feldspar often surrounded by mica, in other cases 



have been obtained, consisting 



siirrouii.liiiii this is a perfect 

 "iica ; other crystals are almosi 

 flattened out, they form irregu 



pact. Flattened noddles of ink 

 also occur at the Haskell mine, 

 (ha/) filtered to marr/arite : va 

 by Dr. Genth. ^ (5) ' Altered in 



l ''i'i shell (oimn.) of'fine fibre 

 -\lf.r,,t; ll t) tn ,J l ite; nspecim. 



"f altered galmiti' fr-.m Xorth Carolina mid Cotopaxi. Nur 



tioned above, and also of the following minerals: sphakri 

 I'Minik- from Cornwall, Pa.; pvrophvllite IVom the Cross 

 colliery, Drifton, Luzerne County, Pa.; of bervl and allanit. 

 Alexander County, X. C. ; ,,f niccoiite from Silver Cliff, Col 



