giving them a solid

000 years ago and is believed to have last erupted about 5

Its dimensions are 31x28x14 mm and it weighs 20

They have a distinctively conical shape with thin grooves (striae) that radiate from the top (apex) of the cone

Shatter Cone Impactite | 7.8 grams | Rochechouart Impact Structure | France | SO24 Wolframite giving them a solidThis is a fantastic shatter cone from France weighing 7. 8 grams and measuring 29x23x15 mm. Although not a meteorite, impactites and shatter cones are directly linked to them and their impacts. Shatter cones are evidence that the rock has been subjected to an extreme shock with very brief high pressures. Shatter cones are rare geological features that are only known to form in the bedrock beneath large meteorite impact craters. They have a