GENERAL INDEX QUARTZ Chalcedony and opal listed separately Alternate coating of terminal faces explained 2:17ff Amethyst occurrences in eastern U.S., approx. 200 listed 21:203–213c,p

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Date: 2005-03-18 11:04:22		GENERAL INDEX QUARTZ Chalcedony and opal listed separately Alternate coating of terminal faces explained 2:17ff Amethyst occurrences in eastern U.S., approx. 200 listed 21:203–213c,p Add to Reading List Source URL: www.minrec.org Download Document from Source Website File Size: 79,42 KB Share Document on Facebook