The Winchcombe meteorite is a carbonaceous chondrite meteorite that was observed entering the Earth's atmosphere as a fluorescent green fireball over Gloucestershire, England, at 21:54 hours on 28 February 2021. Due to a public appeal, fragments were quickly recovered from the village of Winchcombe, enabling it to be collected for analysis before becoming degraded.
Fragment of the Winchcombe meteorite in the Natural History Museum, London
Carbonaceous chondrites or C chondrites are a class of chondritic meteorites comprising at least 8 known groups and many ungrouped meteorites. They include some of the most primitive known meteorites. The C chondrites represent only a small proportion (4.6%) of meteorite falls.
A slice of the Allende meteorite showing circular chondrules.
Some carbonaceous chondrites. From left to right: Allende, Yukon and Murchison.
NWA 3118, CV3
Gujba meteorite, a bencubbinite found in Nigeria. Polished slice, 4.6 × 3.8 cm. Note the nickel-iron chondrules, which have been age-dated to 4.5627 billion years.