In 1932, in a desert bordering to Libya chunks of very pure natural quartz glass were found. From tracks of the natural radioactive decay in the glass it has been established that the event – of whatever kind – that was the origin of the glass occurred 28 million years ago. Libyan Desert Glass was first discovered by stone-age Aterian peoples, who made tools from the glass, and later by Egyptians, who used it as a gem stone.
Chemical analysis of the natural glass reveals that it is fortified with “meteoric elements with typical chondritic proportions”, leading scientists to believe that the glass is the chemical result of a meteorite colliding with the nearly 100% silica composition of the sand. Since its discovery though, the true origin of the high silica Libyan Desert Glass still represents an unanswered enigma to scientists and researchers.
- 60mm diameter for 5oz coin
- Special new antique finish with dark highlights
- Low mintage just 500 pcs
- Sovereign coin backed by the Chad government
- Comes with box and COA
|Silver (Ag) .925
|Date of issue: