Libyan Desert Glass - 7 Grams Specimens like this one are

Specimens like this one are not often seen in just any mineral gallery

Botswana Agate

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Pink Amethyst is a relatively newer mineral found in deposits located in Argentina

Libyan Desert Glass - 7 Grams Specimens like this one areLibyan Desert Glass (LDG), is a tektite found in the Sahara deserts of Western Egypt, near the Libyan border. No one is positive about how this tektite has formed. Some research suggests the impact of a meteorite may have caused it. The heat and pressure from this impact would have melted the silica through radiation, similar to the thermal radiation present in a nuclear explosion. Another theory is the bursting of an asteroid as it passes through