Cat C+E Licence. As category C but with a trailer over 750 kg. Driving this licence will be in either a full articulated vehicle or a draw bar (wagon & drag). This is the largest vehicle you can drive in the HGV industry.
The desert glass is nestled between 100-meter tall sand dunes in a very remote part of southern Egypt. After the 1932 discovery there were only two other expeditions (both in the 1930s) to the region until 1971, when three scientists spent two hours collecting only twenty-four samples.
There may be no sign of a crater, but there is other evidence that the Libyan desert glass was formed by a meteorite impact. For instance, there are high amounts of iridium, an element with low concentrations on Earth but high concentrations in many meteorites, in the Libyan desert glass samples.