Summary
Imilac is a pallasite meteorite found in the Atacama Desert of Northern Chile in 1822.
| Imilac | |
|---|---|
 3747g full slice from the main mass | |
| Type | Stony–iron |
| Class | Pallasite |
| Group | Main Group Pallasite (MGP)[1] |
| 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[1] |
| Observed fall | No |
| Found date | 1822 |
| TKW | 920 kg |
| Strewn field | Yes |
 Related media on Wikimedia Commons | |
Classification edit
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.
Strewn field edit
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).[2]
Specimens edit
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.
Notes edit
See also edit
- Glossary of meteoritics
Media related to Imilac at Wikimedia Commons