PLACE: 3727 E. Blacklidge Drive
TIME:  7:00 p.m. – Tucson, Arizona Time
WHEN: Monday, September 8, 2025

LECTURE: "The Wonderful World of Arizona Calcites" - Unlike quartz crystals, near surface calcite crystals are quickly affected by meteoric waters percolating through the ground.  As a result the best crystals come from some of the deeper mines, like the Magma Mine at Superior, the Old Dick mine at Bagdad and the mines of Bisbee, along with the open pit mines at Ajo and Ray.  The cuprite and malachite included calcite crystals are world renowned and highly sought

SPEAKER: Les Presmyk - Les is an Arizona native and a U of A graduate, along with his wife, Paula, and they just celebrated their 49th anniversary.  Les is a long time member and supporter of TGMS, the MSA and the Flagg Mineral Foundation.

All TGMS Members and Guests (invite a friend) are welcome to attend.

TGMS Members can join via ZOOM by using the TGMS “HUB.” Non TGMS members, if you would like to attend via ZOOM, please contact the TGMS Office, 520-322-5773 or tgms@tgms.org and ask for the link to be sent to you.