MINERAL OF THE QUARTER By Ronald L. Parker Senior Geologist, Senior Geologist, Borehole Image Specialists, P. O. Box 221724, Denver CO 80222 | ron@bhigeo.com
CREEDITE A Rare Fluorinated Sulfate
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BELOW: Spherical radiating aggregate of lustrous, transparent, colorless creedite euhedra grading into orange colored crystals toward the center. Mina Navidad, NW of Abasolo, Durango, Mexico. 5 cm in largest dimension. Photo with permission from John Betts Fine Minerals. OUTCROP | July 2020
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Vol. 69, No. 7 | www.rmag.org