Indigo Gabbro 10mm Round - 15-16 Inch 13x30mm This dye was said to

This dye was said to create Michelangelo’s favorite shade of blue

It may also contain rainbow-colored or sparkling inclusions

It is also one of the hardest

They are all varieties of the mineral corundum

although the colors are much more muted

Indigo Gabbro 10mm Round - 15-16 Inch 13x30mm This dye was said toIndigo gabbro is a color variant of the igneous mineral, gabbro. Typically, this color forms black, but occasionally gabbro comes in oranges and greens, with indigo being the most rare. Metaphysically, this stone can be used to ground the wearer during stressful periods, or during meditation. This stone is considered to have many different metaphysical properties, which has earned it the nickname Merlin stone, or merlinite.