This is such a fascinating story. It weaves astronomy, archaeology, history, Egyptology, and astronomy along with chemistry.
Comet remains not found anywhere else other than in this piece and that too in king tut's brooch?
Can you imagine the ancient Egyptians standing and looking up at the comets blazing across the sky and thinking what kind of a message the gods are sending them?
[Go there for pix]
Brooch of Tutankhamun Holds Evidence of Ancient Comet
Tue, Oct 08, 2013
Even more, scientists confirm first-ever finding of a fragment of the
Most have heard of the treasures of the 18th Dynasty pharaoh
Tutankhamun, first discovered by Howard Carter and Lord Carnarvon in
1922 when they uncovered his tomb in the Valley of the Kings in Egypt.
Few are familiar with his impeccably preserved brooch, recovered along
with the numerous other artifacts within the tomb. Fewer still know
about the striking yellow-brown scarab that is set at its center, and
that it is made of a yellow silica glass stone procured from the sand
of the Sahara and then shaped and polished by ancient craftsmen. The
silica glass was originally formed 28 million years ago, when an
ancient comet entered the earth's atmosphere and exploded over Egypt,
heating up the sand beneath it to a temperature of about 2,000 degrees
Celsius and resulting in the formation of a huge amount of the yellow
silica glass, which lies scattered over a 6,000 square kilometer area
in the Sahara.