Imilac | |
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Type | Stony–iron |
Class | Pallasite |
Group | Main Group Pallasite (MGP) |
Composition | 90% Fe, 9.9% Ni, 21.1 ppm Ga, 46.0 ppm Ge, 0.071 ppm Ir |
Country | Chile |
Region | Atacama Desert, Atacama Region |
Coordinates | 24°12′46″S 68°48′31″W / 24.21278°S 68.80861°W / -24.21278; -68.80861 |
Observed fall | No |
Found date | 1822 |
TKW | 920 kg |
Strewn field | Yes |
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Imilac is a pallasite meteorite found in the Atacama Desert of Northern Chile in 1822.
Imilac is classified as a stony–iron pallasite. Imilac specimens are highly prized by meteorite collectors due to its high concentration of beautiful olivine grains.
Numerous masses were found in a valley to the SW of Imilac. The total weight of the Imilac fall is estimated to be around 1,000 kilograms (2,200 lb). The primary strewn field is long about 8 kilometres (5.0 mi).
Due to weathering, intact olivine grains are present only on large specimens (over 1 kilogram (2.2 lb)). Smaller samples contain darker altered olivine crystals. On the market there are also a lot of very small (few grams) Imilac individuals called metal skeletons: they are severely weathered and lack olivine grains.
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