Tunguska Location 60° 54'N, 101° 57'E Krasnoyarsk region, Siberia, Russia. Fell: 1908 June 30 A great meteorite event occurred in Siberia. A lot of trees were tilted or broken by the explosion in the atmosphere. But no meteorite was found till now. In the summer of 1957, while studying samples of soil brought by L.A. Kulik's expeditions in the years 1929-1930 from the place of the Tunguska Meteorite (U.S.S.R.) fall, A. A. Yavnel', of the Committee on Meteorites, U.S.S.R.. Academy of Sciences, discovered particles of meteoritic and meteoric dust. The particles of the meteoritic dust are small laminae with sharp corners, chips or pieces measuring a fraction of a millimeter or more, and are the result of the crushing of the meteorite during its fall (explosion). Spectrographic and microchemical analyses showed iron with 7 to 10 per cent nickle content and approximately 0.7 per cent cobalt. The composition and presence of some dust particles clearly shaped as little columns prompt the suppostition that the Tunguska meteorite is of the iron, octahedrite class. The particles of dust are regular black globules (probably magnetite) 0.03 to 0.06 mm in diameter. So far only nine globeles have been discovered and since there are very few of them, analyses have not been made. The globules are the result of melting of meteoritic matter during passage through the earth's atmosphere, and were part of the smoke-train of fire-ball that settled on the earth's surface and became mixed with the soil. In 2008 hundred years passed from the event. The coin-medal dedicated to this famous event of meteorite fall. One side is showing a portrait of Kulik - the first scientist who made several expeditions (first 1927) to the site, and studied the event. He was born in 1883, so in 2008 it was 125 year celebration of his birth. One of his boats that was used during one of the Tunguska expeditions is shown also. The other side show the modern view of the site. Two languages are used on the coin - Russian and English. It is a limited edition of 1000 coins only. All the medals are numbered. Some are sold, so ask for the number you want within available. The diameter of the coin is 2 inches = 5.1 cm. Lybian Desert Glass Location South West Egypt Libyan desert glass was probably formed when an asteroid or comet hit the surface of the earth like a huge atomic bomb 29 million years ago, unleashing enough destructive force to not only liquefy the rocks, sand and dirt at ground zero, but to splash the molten, mixed material up into the wispy outer atmosphere. Perhaps some escaped Earth's gravity altogether; the rest plummeted back in a rain of fire and molten glass. The crater marking the original impact site has not been discovered and is likely buried beneath the Saharan sands. Wherever the original impact responsible for Libyan Desert Glass occurred, the results came to rest in the wilds of the Western Egyptian desert. The coin-medal dedicated to this famous cosmic event. One side is a map of Egypt and surrounding territories showing the place where the tektite is found. The other side show the mask of King Tut and his decoration. Originals of both are in Cairo museum. The Decoration has a mounted scarab that is made from the Libyan Desert Glass. This is a limited edition of 500 coins only. All the medals are numbered. You can choose the numbers but some are sold, so ask for the number you want if it is available. The diameter of the coin is 2 inches = 5.1 cm.
||   Tunguska coin-medal. Both sides, $ 25|
it is currenly listed click here to go to the eBay auction
different numbers are available. ask for a number you like
||  Lybian Desert Glass coin-medal. Both sides. $ 30 not available at the moment|
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