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Roll Overs:
#1
#2
#3
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Photos by Thomas Stalder, Bern.
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See below
Found in the area of the red marker below.
Desert Glass
Matthias writes:
3 samples of neolithic tools (3.5 - 7.5 g), the third one including dark dust as a remnant of the asteroid.
In contrast to the Noerdlinger Ries impact which produced the beautiful Moldavites, the asteroid which most probably exploded in the atmosphere above today's Great Sandsea region about 30 Mill. years ago, obviously did not form a crater. But it left behind a richness of different types (in color, transparency, content) of the likewise beautiful LDG. It is especially fascinating to see how human interest in this extraordinary matter continues through time. The LDG was formed to tools (blades, scrapers, arrowheads, spearheads etc.) in the neolithc period c. 6-10.000 years ago, and it adorned the center of Tut anch Amuns legendary necklace centrally as a scarab.
Click to view larger photos #1 #2 #3
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Clio Laplace
11/26/2017 6:42:28 AM |
So beautiful! |
Daniel Da Costa
11/26/2017 5:28:05 AM |
Magnificent |
Bernd Pauli
11/26/2017 4:39:58 AM |
Howard Carter thought the scarab at the center of King Tut*s pectoral was greenish-yellow chalcedony but its true nature was revealed by measuring its index of refraction, which was then compared with other pieces of silica glass. |
Matthias
11/26/2017 1:21:05 AM |
Yes, Paul, the third one is special. That's the piece which includes a quantum of the impactor's (resp. non-impactor's/exploder's) remnant dust, quasi frozen in the glassy mass. |
paul gessler
11/26/2017 12:12:31 AM |
Beautiful examples, I have a collection of them as well.
The 3rd one is extraordinary! Looks like a improvised drill point of sorts? |
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