Tumbled Indigo Gabbro / 1-2" AVG - 1 LB. LOT Menu Gemstone Chip Trees resulting in its rich brown

resulting in its rich brown to reddish-brown coloration and showcasing the geological processes of rapid cooling and mineral inclusion in igneous rocks

The oldest deposits have been dated to approximately 2 billion years ago

5% copper or other metals

Pieces measure approximately 1/16" (AVERAGE SIZE)

Agate Slice #00 1-KILO  1

Tumbled Indigo Gabbro / 1-2" AVG - 1 LB. LOT Menu Gemstone Chip Trees resulting in its rich brownQuantity: 1 pound Average size range: 1 to 2 inches Gabbro is a coarse igneous rock that cooled over long periods of time, as opposed to the related but much faster cooled basalt. Indigo gabbro is a special kind of gabbro that also contains a wide variety of other minerals like quartz and feldspar as inclusions, giving it a more distinctive mottled appearance.