The next meeting is July 23rd: Part 2 of a four part series on geological processes:
1. Plate Tectonic Theory
2. Mountains
3. Plateaus
4. Sedimentary Basins
Mr. Brian will explain each subject, how it relates to minerals, and how to rockhound each formation. He will explain what can be generally found in each formation.
We’ll meet in the GeoSciences/Pebble Pups room in the new Huntsville Gem and Mineral Education Center at 6:00p. Bring your friends! We are hoping to meet new members who joined the Gem & Mineral Society at the Fall Show.
Did You Know? In January, researchers at NASA’s Johnson Space Center identified the world’s oldest asteroid crater: a 43-mile wide impact structure in Yarrabubba, Western Australia. By analyzing radioactive elements in sample rocks, geochronologists determined that the collision occurred about 2 billion years ago. The impact sent 100+ billion tons of water vapor into the upper atmosphere possibly triggering a period of global warming. Source: The Week, February 14, 2020
November - Topaz: Colorless topaz treated to blue is a mass-market gem, but fine pink-to-red, purple, or orange gems are one-of-a-kind. Top sources include Ouro Prêto, Brazil, and Russia's Ural Mountains. Citrine: Citrine’s color comes from traces of iron. It’s perhaps the most popular and frequently purchased yellow gemstone and an attractive alternative for topaz and yellow sapphire.
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