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Solar System - Moon NWA 8609 Lunar...
Solar System - Moon NWA 8609 Lunar Meteorite $1 1oz .999 pure silver coin, ultra high relief.
Beautiful first issue of the "Solar System" series. The coin depicts the moon on both side with a concave shape and the metorite is a real piece of the NWA 8609 found in Northwest Africa.
The coin is housed in a prestigious wooden box with COA. Extremely low mintage of 686 pcs. worldwide.
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|Face Value :||1 Dollar|
|Metal :||Pure silver .999|
|Weight :||1 oz|
|Size :||38.61 mm|
|Quality :||Proof antique finish|
|Mintage :||Only 686 pcs. worldwide|
|Series :||Solar System|
|Certificate of Authenticity :||Yes|
|Original ETUI box/case :||Yes|
The Earth’s only natural satellite, the moon is the largest in the solar system relative to the planet it orbits. The second densest after Jupiter’s Io, it’s thought to have formed just after the Earth around 4.5 billion years ago from an impact between a Mars-sized body and the Earth itself.
Set in synchronous rotation with the Earth, always showing its same face, the moon’s gravitational influence produces the ocean tides and is arguably a huge factor in the appearance of life on our planet. The Moon’s current orbital distance is about thirty times the diameter of Earth, causing it to have an apparent size in the sky almost the same as that of the Sun. This allows the Moon to cover the Sun nearly precisely in total solar eclipse. This matching of apparent visual size is a coincidence.
One of the major geologic processes that has affected the Moon’s surface is impact cratering, with craters formed when asteroids and comets collide with the lunar surface. There are estimated to be roughly 300,000 craters wider than 1 km on the Moon’s near side alone. Obviously, this leaves plenty of debris and when a new object impacts the lunar surface, some of that debris is ejected back into space. Occasionaly, it lands on Earth.
Meteorite NWA 8609: Originally purported to have been found in Morocco and brought to light in 2014, meteorite North West Africa 8609 weighed 45g and was a dark brown stone with an irregular weathered surface.
Microprobe examination of a polished mount shows a fragmental breccia of plagioclase, olivine, and pyroxene grains, also feldspathic clasts, melt clasts, and microgabbro clasts. Accessory Fe-Ni metal, ilmenite, and apatite.
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