the name Herkimer Diamond

Product ID: SPLP4711

This is a very nice specimen consisting of a group of parallel crystals of dark green Epidote from campo do Boa

It is caused by fibrous inclusions within the quartz that reflect light in a concentrated manner

Olivine Volcanic Bomb | Lava Coated Crystal | 199 grams | Mortlake, Victoria, Australia | SO24 Seymchan the name Herkimer DiamondAn 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