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[1]
Observed fall	No
Found date	1822
TKW	920 kg
Strewn field	Yes
Related media on Wikimedia Commons

Classification

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

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

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

See also

• Glossary of meteoritics
• Media related to Imilac at Wikimedia Commons