 | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Alberene and Old Dominion quarries, Albemarle County. In these two soapstone quarries, tabular ilmenite crystals...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during...about 20 other quartz mines are operated in the region of the Subpolar Urals, northwest of Saranpaul, |  | | Report (issue) | | limestones the shales, etc., most. effect of a diabase dike may be practically nil, where under other...Zeolites are of common occurrence in the Triassic diabase quarries of Adams, Lancaster, Berks, and ; Hydrous...Pennsylvania are associated with intrusive Triassic diabase: the lead and zinc veins of Perkiomen and Phoenixville...sandstone, shale, conglomerate, and intrusive diabase in the northern part. Low hills; a southern extension...and Octoraro schist of the Doe Run and Avondale region, Chester County, Pennsylvania: U. S. Geol. Surv |  | | Book (edition) | | opened or systematically worked, as in mines and quarries, the amateur is far better able to keep track...system in 1735, followed by Friedrich Mohs of Germany, who published his in 1820. In 1758, Axel Frederic...Wilhelm Scheele (1742-1786) in Sweden, and in Germany by Martin Heinrich Klaproth (1743-1817), the merits...carried out by Eilhard Mitscherlich (1794-1863) in Germany; these did much to explain hitherto puzzling variations...Properties Considering the enormous collector in quarries, mines, quantities of ordinary rock which greet | | | Book (edition) | | opened or systematically vvorked, as in mines and quarries, the amateur is far better able to keep track...system in 1735, followed by Friedrich Mohs of Germany, who published his in 1820. In 1758, Axel Frederic...Wilhelm Scheele (1742-1786) in Sweden, and in Germany by Martin Heinrich Klaproth (1743-1817), the merits...carried out by Eilhard Mitscherlich (1794-1863) in Germany; these did much to explain hitherto puzzling variations...of ordinary rock which greet the collector in quarries, mines, and other collecting sites, it is obvious |
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