Libyan Desert Glass - SOLD 1.027" rockinaboxopal PTEROSAUR (Wing bone)

PTEROSAUR (Wing bone)

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Strangest of all was Brachycrus

Fragments from this explosion were driven into trees and in one case created an impact crater 85 feet (26 m) across and 20 feet (6 m) deep

85" fossil plant that was recovered from Mazon Creek in Illinois

Libyan Desert Glass - SOLD 1.027" rockinaboxopal PTEROSAUR (Wing bone)Comet 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. 027" chunk of Libyan Desert Glass. It is a