While a crystal sitting on your shelf doesn't pose a health risk you should always wash your hands after handling and keep it out of reach of children

it is not a cut surface

Fulgurites are scientifically important because they trap the energy of the lightning and often preserve the composition of the atmosphere at the time of their creation

Stretching 17 km (11 mi) along the coast

Olivine Volcanic Bomb | Lava Coated Crystal | 32.6 gr | Mt Shadwell Volcano, Australia | SO24 Scapolite While a crystal sitting onAn olivine volcanic bomb is a type of volcanic rock that contains olivine crystals and has been ejected during a volcanic eruption. Olivine is a mineral that is commonly found in the Earth's mantle and is one of the first minerals to crystallize as magma cools. Volcanic bombs are large clots of lava that are ejected from a volcano during an explosive eruption. They can vary in size, and their shapes are often streamlined due to their molten nature as