Pallasite - Notable Pallasite Finds

Notable Pallasite Finds

Although pallasites are a rare meteorite type, enough pallasite material is found in museums and meteorite collections and is available for research. This is due to large finds, some of which yielded more than a metric ton. The following are the largest finds:

• Brenham, Kansas, USA. In 1890 the find of about 20 masses with a total weight of 1,000 kilograms (2,200 lb) around the shallow Haviland Crater were reported. More masses were found later, including one of 454 kilograms (1,000 lb) from a depth of 5 feet (1.5 m), the total amounting to about 4.3 tonnes (4.2 long tons; 4.7 short tons). A piece of 487 kilograms (1,070 lb) is in the Field Museum of Natural History, Chicago. In 2005, Steve Arnold of Arkansas, USA, and Phil Mani of Texas, USA, unearthed a large mass of 650 kilograms (1,400 lb) and in 2006 several new large masses
• Huckitta, Northern Territory, Australia. A mass of 1,400 kilograms (3,100 lb) was found in 1937 on a cattle station north-east of Alice Springs. Earlier, in 1924, a transported piece of about 1 kilogram (2.2 lb) had been found on Burt Plain north of Alice Springs.
• Fukang, Xinjiang Province, China. A mass of 1,003 kilograms (2,210 lb) was recovered in 2000.
• Imilac, Atacama Desert, Chile; known since 1822. Numerous masses up to 200 kilograms (440 lb) were found, the total weight is about 920 kg.
• Brahin, Gomel Region, Belarus, known since 1810. Many masses were found strewn in a field, with a total weight of about 820 kg. An additional mass of 227 kg was found at a depth of 10 feet (3.0 m) in 2002.
• Esquel, Chubut, Argentina. A large mass of 755 kg was found embedded in soil before 1951.
• Pallasovka, Pallasovka, Russia. A single mass of 198 kg was found near Pallasovka, Russia in 1990. Coincidentally, both the town of Pallasovka and pallasite meteorites were named after the naturalist, Peter Pallas.
• Krasnojarsk, Yeniseisk, Russia. A mass of about 700 kg was detected in 1749 about 145 miles (233 km) south of Krasnojarsk. It was seen by P. S. Pallas in 1772 and transported to Krasnojarsk (see above) The main mass of 515 kg is now in Moscow at the Academy of Sciences. Pallasites are named after Peter Pallas for his study of this meteorite.
• Seymchan, discovered near the town by the same name, in far eastern Russia in 1967. This main group Pallasite has some areas free of olivine crystals, and may have formed near the junction of the core and the mantle of an asteroid. Multiple masses in excess of 1 tonne have been recovered.