446 V. F. MARSTERS — ASBESTOS DEPOSITS OF BELVIDERE MOUNTAIN 



Locality. ■ Analysis derived from. 



Sonora folio, California Basic gabbro or ultra basic rocks of the peridotite 



family. 



Moriah, New York Pyroxene. 



Aqueduct, New York 



Montville, New Jersey Saxonite. 



Grenville, California Pyroxene rock. 



Mount Diablo, California Peridotite. 



Blandford, Connecticut Sahlite in limestone (Monograph 29, U. S. G. S.) 



Granville, Connecticut Enstatite in limestone (Monograph 29, U. S. G. S.). 



Kamloops, British Columbia. . . Basic volcanics. 



Ishpeming, Michigan 



Roseburg folio Saxonite and olivine gabbro. 



Lassen peak Dunite. 



Holyoke folio Associated with limestones. 



Mosquito range, Colorado Pyroxene and amphibole. 



Russia Olivine and diallage rock. 



Southwest Minnesota Saxonite. 



Roxbury, Vermont 



Manhattan island, New York. . Actinolite, tremolite. 



Rainy Lake region Olivine eruptives. 



Nevada City and Grass valley, 

 California. 



Sierra Nevada Gabbro (dike) peridotite. 



Coast range, California Peridotite (see 177a). 



Marquette region 



Elkhorn district, Montana Alteration product from diorite. 



Baltimore, Maryland Enstatite olivine rocks. 



