Shatter Cone | 903 grams | Impactite | Sudbury Impact Structure | Ontario, Canada | SO24

This is a fantastic shatter cone from Canada weighing 903 grams and measuring 12.8x8.3x6.3 cm. This shatter cone was formed 1.849 billion years ago at the Sudbury Basin (also named Sudbury Structure) in the Paleoproterozoic era.  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 distinctively conical shape with thin grooves (striae) that radiate from the top (apex) of the cone. Shatter cones can range in length from 1 centimeter to several meters. The azimuths of the cones' axes typically radiate outwards from the point of impact, with the cones pointing towards the center of the impact crater.

This piece displays very well and is a very nice size showing multiple characteristics of its origin. Would make a beautiful addition to any collection.