5000 Francs CFA Libyan Desert Glass

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背面描述	The reverse presents a dramatic radiating burst composition in antique-finished silver, with fine linear striations emanating from the centre to suggest an impact or meteoritic event. Irregular raised nodules of varying size are scattered across the field, evoking fragments of desert glass or rocky debris. At the centre, an authentic specimen of Libyan desert glass — a translucent, pale yellow-green natural silica glass of tektite origin — is inset as a genuine insert. The legend 'LIBYAN DESERT GLASS' is inscribed along the right inner rim in incuse Latin lettering.
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背面铭文	LIBYAN DESERT GLASS
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附加信息	Libyan Desert Glass is one of the more genuinely strange materials in the natural world — a pale yellow silica glass scattered across roughly 6,500 square kilometers of the Egyptian and Libyan Sahara, formed approximately 29 million years ago when a cosmic impact or airburst event fused the desert surface at temperatures exceeding 1,800°C. Its most famous appearance in human history is a carved scarab set at the center of a pectoral found in Tutankhamun's tomb, almost certainly shaped from a fragment collected near the Saad Plateau. The glass insert used in this coin is authenticated material from the strewn field.

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