| 词条 | Imilac |
| 释义 |
|Name= Imilac |Image= Imilac full slice.jpg |Image_caption= 3747g full slice from the main mass |Type= Stony–iron |Class= Pallasite |Group= Main Group Pallasite (MGP)[1] |Structural_classification= |Composition= 90% Fe, 9.9% Ni, 21.1 ppm Ga, 46.0 ppm Ge, 0.071 ppm Ir |Shock= |Weathering= |Country= Chile |Region= Atacama Desert, Atacama Region |Lat_Long= {{coord|24|12|46|S|68|48|31|W|display=inline,title}}[1] |Observed_fall= No |Fall_date= |Found_date= 1822 |TKW= 920 kg |Strewn_field = Yes |Image2= |Image2_caption= }} Imilac is a pallasite meteorite found in the Atacama Desert of Northern Chile in 1822. ClassificationImilac 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 fieldNumerous masses were found in a valley to the SW of Imilac. The total weight of the Imilac fall is estimated to be around {{convert|1000|kg}}. The primary strewn field is long about {{convert|8|km}}.[2] SpecimensDue to weathering, intact olivine grains are present only on large specimens (over {{convert|1|kg}}). 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. Notes1. ^1 {{metbull|12025|Imilac}} 2. ^Pedersen, H., Lindgren, H., & Canut de Bon, C. Strewn-fields of Imilac and Vaca Muerta. See also
3 : Meteorites found in Chile|Atacama Region|Stony-iron meteorites |
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