Egyptian pebble filled with DIAMONDS reveals comet that turned Sahara into glass 28 million years ago
The first evidence of a comet impact on Earth has been found in a mysterious black Egyptian pebble filled with diamonds.It created huge amounts of yellow silica glass - also known as Libyan desert glass- which today lie scattered over a 6 000 square kilometre area in the Sahara.
‘Comets always visit our skies – they’re these dirty snowballs of ice mixed with dust – but never before in history has material from a comet ever been found on Earth,’ said Professor David Block of Wits University, who led the research.
As well as the glass, the impact produced microscopic diamonds.
Read more - http://www.dailymail.co.uk/sciencetech/article-2450798/Egyptian-pebble-filled-diamonds-evidence-comet-colliding-Earth.html
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