January 2022 Outcrop

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MINERAL OF THE QUARTER By Ronald L. Parker Senior Geologist, Borehole Image Specialists, P. O. Box 221724, Denver CO 80222 | ron@bhigeo.com

RUTILE The Petrogenetic Wizard

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Doubly-terminated, opaque, tetrahedral crystal of rutile from Graves Mountain, Lincoln County, Georgia. This specimen displays excellent sub-metallic luster. The apex of the pyramidal faces is 8.8 cm from the base. Photo by Annette Slade. Used with permission from Collector’s Edge Minerals, Inc. OUTCROP | January 2022

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Vol. 71, No. 1 | www.rmag.org


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January 2022 Outcrop by The Rocky Mountain Association of Geologists - Issuu