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Welcome to the Colorado Mineral Society

Celebrating our 83rd Year!
1936 - 2019

Friday, March 1st, 2019 - 7:30 pm
CMS General Membership Meeting
at St. Paul's Episcopal Church, Lakewood
Kids, guests and visitors are always welcome

Map to St. Paul's Church


March General Meeting Presentation:

The W-Sn-Be deposit of Xuebaoding, Sichuan Province, China:
current research, past, and future of a world class mineral locality

by Markus B. Raschke
Department of Physics, Department of Chemistry,
and JILA University of Colorado at Boulder

The Xuebaoding Mountain with its W-Se-Be deposits has emerged as a world-class specimen locality for scheelite, cassiterite, and beryl since its discovery in the 1950s. Situated high above tree line on the northeastern edge of the Tibetan Plateau, the mineralized muscovite-rich quartz veins intruding Triassic metamorphic schist and carbonate rock are of a greisen-type associated with small alkali granite intrusions. Major gem-grade scheelite, beryl, and cassiterite are found with minor K-spar, quartz, fluorite, calcite, and rare Sn-bearing minerals mushistonite, kësterite, and others. Difficulties in access of this remote locality above 4200 m have long limited systematic research of its geology and mineralogy. I will discuss recent progress and new insight into the mineralogy which resolve a number of mysteries surrounding this deposit.

CMS Members Jeff Self and Donna Ware featured on Colorado Public Radio's “Colorado Matters”

CMS members Jeff Self and Donna Ware were featured in an interview on the “Colorado Matters” program on Colorado Public Radio. The recorded interview with Ryan Warner can be listened to online via the CPR website at the link below, along with a story and photos about them.

Click Here for Interview

A Visitor’s Guide to
Colorado Gemstones

On International Gem Society's
Website mentions the
Colorado Mineral Society

Click here to read

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