 | | Journal (article/letter/editorial) | | [UNIVERSITY OF ADELAIDE LIBRARIES] at 04:39 13 October 2017 SUMMARY STEVEN C. CHAMBERLAIN Road-Cut Mineral...Mineral Occurrences of St. Lawrence County, New York Figure 1. Fluor-dravite, 5.9 cm, collected by Edley...Edley Brown in 2002 from the fluor-dravite road cut. Michael Walter specimen and photo. 556 ROCKS & MINERALS...3140 CEC Center for Mineralogy New York State Museum Albany, New York 12230 sccham2@yahoo.com MICHAEL...11B Nicholville, New York 12965 mwalter9@twcny.rr.com Downloaded by [UNIVERSITY OF ADELAIDE LIBRARIES] |  | | Journal (article/letter/editorial) | | scheme for the tourmaline group. They reexamined the currently approved fourteen end-members of the tourmaline-group...identified potential new end-members based on their compositional variations. They organized all of them into three...tourmalines. One of these, a potential new end-member alkali tourmaline, is fluorine-dominant dravite, which they...they designated fluor-dravite, NaMg3Al6Si6O18(BO3)3(OH)3F. In this article we report a significant occurrence...occurrence of fluorine-dominant dravite in crystallized specimens of interest to collectors. We think |  | | Journal (article/letter/editorial) | | 27 August 2013 FROM NEW YORK STATE T ourmaline is a chemically complex group of silicates. Essentially...substitutions at the different crystallographic sites that confer varied physical properties to the mineral....much appreciate the size and beauty of tourmaline crystals, and thus the species of the group have become...become among the most hunted of the mineral world. New York State lacks places for collecting gem tourmalines...tourmalines, but some of the species found here are unique in composition, crystallography, mineral association |
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Cream of the Valley Road, Gouverneur, St. Lawrence County, New York, USA