5346799
9780764326424
Mark Block, proprietor of Mark Block Fine Art and Antiques (www.blockglass.com), is a long-time collector of rocks, gems, and minerals. His collection focuses on varieties of quartz, fluorite, and turquoise.Block, Mark P. is the author of 'Turquoise Mines, Mineral, & Wearable Art', published 2007 under ISBN 9780764326424 and ISBN 0764326422.
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