Held on second Tuesday of each Month Our Typical Agenda is as follows:
Start Time: 7:00 PM at the Clubhouse, 516 West Atlanta Street SE, Marietta, GA 30101
7:00 – 7:45 PM – Speaker or Presentation
7:45 – 8:30 PM – Monthly Business Meeting
8:30 PM – Door Prize Drawings, Silent Auction, Socializing and Refreshments
To get an idea of the types of programs that we typically have each month, take a look at some of the previous presentations.
The member meeting is typically held on the second Tuesday of every month. For April, the monthly meeting is on Tuesday, April 9th; we meet at the clubhouse located at 516 West Atlanta Street in Marietta, and we start at 7:00pm.
Our speaker for this month is Tim Hellinger, the Co-Chair of the Rock Tumbling Group within the Georgia Mineral Society, and he is going to talk to us about Rock Tumbling: From Field to Polish, covering the techniques from collecting your stones to turning them into shiny gems.
Tim Hellinger was brought up in the mining districts of Colorado, where he fostered a deep passion and expertise for rock hunting and mineral prospecting. Later, upon relocating to Ohio, Tim eagerly shared his extensive knowledge of rockhounding and gold prospecting techniques with various groups, including the Cleveland Museum of Natural History as well as schools across the state. Currently a resident of Alabama, Tim also volunteers at the Tellus Science Museum.
We look forward to seeing you this month. We’ll have light refreshments and free door prizes!
On Tuesday, April 9th, the first item up for bid is a pyrophyllite specimen from Graves Mountain, Georgia (top below); this mineral comes from the Greek words pyr and fullon meaning ‘fire’ and ‘leaf’, respectively. It has a Mohs hardness of 1 to 1.5, so it is prized by its ability to hold fine detail. While pyrophyllite itself is generally considered safe, there have been some concerns about its association with asbestos minerals; asbestos contamination in pyrophyllite deposits can pose health risks if the material is disturbed or crushed, releasing airborne fibers. The second item is lazulite in quartzite also from Graves Mountain, Georgia (middle); this is a rare phosphate mineral that forms in metamorphic environments under high-pressure conditions; its name is derived from the Arabic word lazaward for ‘heavens’ or ‘sky’ due to its blue color. The final lot is a fossilized sand dollar (bottom); common locations include coastal regions, marine deposits, and even inland areas where ancient seas once existed, which can date back millions of years. It is essential to differentiate from modern sand dollars by examining the surrounding rock matrix.
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