can form depending on formation conditions

Specimen Size:  Large Cabinet-Sized

Common colors include clear

Dimensions: 85x59x39 mm / 3

Clarity:  Translucent

Shatter Cone Impactite | 31.57 grams | Rochechouart Impact Structure | Montoume, France | SO24 Picture Jasper can form depending on formationThis is a fantastic shatter cone from Montoume France weighing 31. 57 grams and measuring 42x33x21 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. This particular specimen from Montoume is classified as subvolcanic dike rock. Shatter cones are rare geological features that are only