Doors will be open at 7:00 p.m. and the meeting will start at 7:30 p.m.
FOR: TGMS Members and open to the public
GUEST SPEAKER: John Callahan & Ron Gibbs
John "Thunder" Callahan is a retired illustrator with the U.S. Geological Survey, collector and student of Arizona minerals, field collector, and occasional TGMS caterer.
Ron Gibbs is a retired Mining Engineer with Freeport McMoRan, collector and enthusiast of all sizes and sorts of minerals, he is best known for micromounts.
Both John & Ron are long term TGMS members and volunteers.
LECTURE TITLE: "Micromineralogy at the 79 Mine"
For more information, contact the TGMS office.