Rough Obsidian / 1.5-2.5" AVG - 1 KILO LOT Menu Mushrooms and some crystals may appear

and some crystals may appear more yellow when viewed from specific directions

Rose Quartz Gemstone Skull

Clear Quartz Crystals from Brazil - Full Flat

a volcanic rock that contains larger inclusions in a fine-grained stone

it is sometimes called carnelian onyx

Rough Obsidian / 1.5-2.5" AVG - 1 KILO LOT Menu Mushrooms and some crystals may appearQuantity: 1 kilogram Average size range: 1. 5 to 2. 5 inches Obsidian is not a gemstone, but instead a kind of glass that forms when volcanic lava rapidly cools in the open air without forming any specific crystalline structures. When polished, obsidian can occasionally exhibit a gold, silver, or rainbow sheen depending on any included minerals.