May 2018 Outcrop

Page 30

MINERAL OF THE MONTH By Ronald L. Parker, Senior Geologist, Borehole Image Specialists, 5650 Greenwood Plaza Boulevard, Suite 142, Greenwood Village, CO 80111 ron@bhigeo.com

TITANITE The Wedge-Shaped Timepiece

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Cluster of many intersecting translucent brown titanite crystals fully crystallized on all surfaces with no matrix from Bear Lake Diggings, Tory Hill, Ontario, Canada. Several of the titanite crystals have rough areas on the edges where they intersected other nearby crystals. Ex. Bill Plavac collection #2743. Used with permission from John Betts Fine Minerals.

OUTCROP | May 2018

30

Vol. 67, No. 5 | www.rmag.org


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May 2018 Outcrop by The Rocky Mountain Association of Geologists - Issuu