Olivine Volcanic Bomb | Lava Coated Crystal | 18 gr | Mortlake, Victoria, Australia | SO24 Ammolite This is an outstanding Monturaqui

This is an outstanding Monturaqui Impactite specimen weighing 6

Name:  Schorl Tourmaline

and a raw cross-section where the interior of the slice can be seen

9 inches                          Specimen Box 33x33 mm / 1

Bracelet Diameter:  177 mm / 7 inches

Olivine Volcanic Bomb | Lava Coated Crystal | 18 gr | Mortlake, Victoria, Australia | SO24 Ammolite This is an outstanding MonturaquiAn 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