Olivine Volcanic Bomb | Lava Coated Crystal | 38.4 gr | Mt Shadwell Volcano, Australia Ammonite North Groton

North Groton

or "rock crystal"

Here we have for you a nice looking individual cut fragment of a Sahara Desert NWA unclassified meteorite weighing 184 grams

Shape: Round Checkerboard Cut

Olivine Volcanic Bomb | Lava Coated Crystal | 38.4 gr | Mt Shadwell Volcano, Australia Ammonite North GrotonAn 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