Black Jasper Mushrooms / 1.5-3.5" AVG - 1 KILO LOT Menu Pyramids Green and purple are the

Green and purple are the most common colors

or some combination of all of these

Pieces measure approximately 3"-3

despite the name is a variety of banded calcite

Black Jasper Mushrooms / 1.5-3.5" AVG - 1 KILO LOT Menu Pyramids Green and purple are theQuantity: 1 kilogram Average size range: 1. 5 to 3. 5 inches Jasper is an aggregate stone, formed from combinations of quartz, chalcedony, and other minerals that all affect the resulting colors or patterns that form. Black jasper takes its color from inclusions of chert, and aside from use in jewelry it was commonly used in Ancient Greece to streak test metals to determine purity.