Dims: 2.47x0.65x0.41" (6.29x1.64x1.05cm)
Wt: 0.13oz (3.6g)
Al Kufra, Libia
This specimen of lechatelierite was formed as a fulgarite, the result of a lightning strike in desert sands. It is amazingly light, which is due to its nature - a hollow tube of fused quartz. The interior was, of course, vaporized, and the lechatelierite is the fused, glassy material lining this cavity. On the outside, there are partially melted grains of sand fused into the shell, so it has a much rougher appearance. On the ends of the tube, a loupe reveals the transitions between the lechateliearite and the original quartz.