Libyan Desert Glass - SOLD 1.510" predators Sharks were some of the

Sharks were some of the first fish to evolve multiple rows of teeth

Guion Bluford

using its tail as a counterweight

marked by many species and tool-making techniques

Libyan Desert Glass - SOLD 1.510" predators Sharks were some of theComet impact glass! 28,500,000 years old! In the southeastern spur of North Africas Great Sand Sea, there are several fields of luminous, yellow green glass known as Libyan Desert Glass (LDG). Due to the lack of any visible impact crater, the most likely source is a low density asteroid or comet airburst explosion leading to the fusion of silica rich sands roughly 28,500,000 years ago. This specimen is a 1. 510" chunk of Libyan Desert Glass. It is a