 with it. There is no evidence that any of the bornite Is of secondary origin. It is therefore believed that in the Virgilina district the greater part of the chalcocite is a primary mineral contemporaneous with the bornite and in no way  The Enrichment of Ore Deposits - Page 189by William Harvey Emmons - 1917 - 530 pagesFull view - About this book
 | North Carolina. Department of Conservation and Development - Agriculture - 1911 - 146 pages
...minute fractures in the bornite; the other contemporaneous and intergrown often crystallographically with it. There is no evidence that any of the bornite is of secondary origin. It is, therefore, clear that in the Virgilina district the greater part of the chalcocite is a primary mineral contemporaneous... | |
 | Washington Academy of Sciences (Washington, D.C.) - Science - 1911 - 342 pages
...minute fractures in, the bornite; the other contemporaneous and intergrown often crystallographically with it. There is no evidence that any of the bornite is secondary. It is, therefore, clear that in the Virgilina District the greater part of the chalcocite... | |
 | Ulysses Sherman Grant, Daniel F. Higgins - Glaciers - 1913 - 800 pages
...minute factures in the bornite; the other contemporaneous and intergrown, often crystallographically, with it. There is no evidence that any of the bornite...Virgilina district the greater part of the chalcocite ia a primary mineral contemporaneous with the bornite and in no way derived from it or from any other... | |
 | United States - 1913 - 754 pages
...minute factures in the bornite; the other contemporaneous and intergrown, often crystallographically, with it. There is no evidence that any of the bornite...secondary origin. It is therefore believed that in the Virgiina district the greater part of the chalcocite is a primary mineral contemporaneous with the... | |
 | North Carolina. Department of Conservation and Development - Geology - 1916 - 376 pages
...in, the bornite; the other contemporaneous and intergrown often crystallographically with it. 'Ihere is no evidence that any of the bornite is of secondary...mineral contemporaneous with the bornite and in no way derived from it, or from any other copper-bearing mineral, by processes of secondary alteration." In... | |
 | Geology - 1917 - 244 pages
...in, the bornite; the other contemporaneous and intergrown often erystallographically with it. 'Ihere is no evidence that any of the bornite is of secondary...mineral contemporaneous with the bornite and in no way derived from it. or from any other copper-bearing mineral, by processes of secondary alteration." In... | |
 | Forests and forestry - 1917 - 380 pages
...in, the bornite; the other contemporaneous and intergrown often crystallographically with it. 'Ihere is no evidence that any of the bornite is of secondary...mineral contemporaneous with the bornite and in no way derived from it, or from any other copper-bearing mineral, by processes of secondary alteration." In... | |
 | Virginia. Division of Mineral Resources - Geology - 1925 - 762 pages
...in, the bornite; the other contemporaneous and intergrown often crystallographically with it. 'Ihere is no evidence that any of the bornite is of secondary...mineral contemporaneous with the bornite and in no way derived from it, or from any other copper-bearing mineral, by processes of secondary alteration." In... | |
 | Geology - 1911 - 910 pages
...minute fractures in, the bornite; the other contemporaneous and intergrown often crystallographically with it. There is no evidence that any of the bornite...mineral contemporaneous with the bornite and in no way derived from it, or from any other copper-bearing mineral, by processes of secondary alteration. REVIEWS... | |
 | United States National Museum - Anthropology - 1911 - 834 pages
...minute fractures in, the bornite; the other contemporaneous and intergrown often crystallographically with it. There is no evidence that any of the bornite is of secondary origin. It is, therefore, clear that in the Virgilina District the greater part of the chalcocite is a primary mineral contemporaneous... | |
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