Libyan Desert Glass | Natural Impact Glass | 4.7 Grams | Authentic Impactite Wolframite From the Hupé Collection :

From the Hupé Collection : "Amgala (Oum Dreyga) 4

They are valuable to researchers studying geophysical processes and past climate conditions

This is a fabulous 8

along with Zambia

Libyan Desert Glass | Natural Impact Glass | 4.7 Grams | Authentic Impactite Wolframite From the Hupé Collection :This is a rare and fantastic 4. 7 gram Libyan Desert Glass from Kuffra, Libya, with dimensions of 27x17x11 mm. Although its exact origin is still debated, the leading theory suggests it was formed by a high energy event, such as a meteoric impact or airburst, that melted the desert sand directly where it lay, without being ejected into the atmosphere and re entering. This results in different physical characteristics compared to tektites. Libyan