Hematite Pyrite Plated 2mm Corner Cut Cube - 15-16 Inch hidden although the colors are much

although the colors are much more muted

Agate is one of many varieties of banded Chalcedony

Most commonly mined in Madagascar

and it is also known as Toog

Abalone Shell is strong and is made of stacked calcium carbonate tiles

Hematite Pyrite Plated 2mm Corner Cut Cube - 15-16 Inch hidden although the colors are muchHematite is an iron oxide and one of the few gemstones with a metallic luster. When tumbled it can have the look of polished steel. Hematite is black to steel to gray or silver to gray, as well as brown to reddish brown or red in color. Its name is derived from the Greek word for blood, haima, owing to its red appearance when sliced thinly or powdered.