Shattuckite 8mm Star Cut Coin - 15-16 Inch 16mm from light blue to lapis

from light blue to lapis blue to cobalt

The cabochon you received will not be exactly what is shown in the image

is aptly named for its shades of gold

A variety of granite sealing products are available online or through home improvement stores

which may contain iron oxide

Shattuckite 8mm Star Cut Coin - 15-16 Inch 16mm from light blue to lapisShattuckite is a rare copper silicate hydroxide mineral. It occurs in bright turquoise blues and darker blues as well as rust reds, commonly with inclusions of copper in speckled patterns throughout the stone. Shattuckite is a pseudomorph, meaning it forms by replacing another minerals crystal structure atom by atom with its own crystal structure, with little alteration of the external shape of the original crystal.