Libyan Desert Glass - 4 Grams The dark and light difference

The dark and light difference between the two individual fish really adds to the  uniqueness of this piece

These photos were taken with a backlight to better show the natural banding

also known as spirit quartz and pineapple quartz

Pikes Peak

Anatase is formed synthetically to be used as a semiconductor

Libyan Desert Glass - 4 Grams The dark and light differenceLibyan 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