MINERAL OF THE MONTH By Ronald L. Parker, Senior Geologist, Borehole Image Specialists P. O. Box 221724, Denver CO 80222 | ron@bhigeo.com
SIDERITE Ferrous and Fizzy
»»CONTINUED ON PAGE 19 Euhedral siderite with biotite and quartz. The siderite crystals are compositionally zoned from center to edge. Collected by B. Wylie, circa 1978, Crabtree Creek Quarry, Wake County, NC. Photo B. Wylie.
OUTCROP | April 2017
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Vol. 66, No. 4 | www.rmag.org