This is a must have 54 gram Impact Vesicular Breccia also referred to as Suevite coming from the famous Rochechouart impact structure in Southwestern France

This impact breccia was found in the area of the village of Fuendetodos near the center area of this large multiple impact structure

The contrast in their appearance is striking

Prehnite is believed to have a calming effect on the mind and emotions

Bou Azzer mining district

Kofelsite Impact Myth | Grey Melt Rock | 22.3 grams | Köfels Structure | Austria | SO24 Natrolite This is a must haveThis is a 22. 3 gram Grey Melt Rock from the Kfels Structure, Austria. It measures 38x22x21 mm. The specific origin of kofelsite rocks is uncertain & debated. The rocks are found in a landslide deposit in western Austria. Researchers have suggested that the landslide was impact triggered. The kofelsite samples in the landslide deposit thus may be impactites (fused rocks from the heat of impact). Some workers have suggested that the rocks are