Indigo Gabbro is a combination of multiple minerals containing Feldspar, Chlorite, Serpentine, Muscovite, Pyroxene, Hercynite, and Magnetite in a charcoal colored matrix; it may also contain small amounts of Olivine, Chrome Garnet, Actinolite, and Biotite. Indigo Gabbro occurs in the indigo and violet ranges of color, and darker, often occurring as black. The stone’s name is two fold, it’s color variation is an easy read for naming. Gabbro was named by the German geologist Christian Leopold von Buch after a town in the Italian Tuscany region. Essexite is named after the type locality in Essex County, MA, USA.
However Gabbro refers to a large group of dark, coarse-grained, protruding igneous rocks similar in chemical structure to basalt. The rocks are formed when molten magma is trapped beneath the Earth's surface and cools into a crystalline mass. Gabbro occurs in most of earth’s oceanic crusts, especially in mid-ocean ridges. Gabbro often contains valuable amounts of chromium, nickel, cobalt, gold, silver, platinum, and copper sulfides.
Ocellar varieties of gabbro can be used as paving stones and it is also known by the trade name 'black granite', used in kitchens and their countertops. In New Age healing Indigo Gabbro is known as the dominator. It’s dark surface reflect the darker self of each individual and asks us to delve deep in the darkness and deal with the demons we have been hiding. Gabbro can be helpful in connecting the higher self with the darker self, connecting the two halves for wholeness and completeness within the soul and body. Gabbro relieves discord, and in meditation asks the user to open their higher self to this dark side of the self. Gabbro can also be used in opening the third eye chakras, again this is the higher self being opened to rest of the body to be in balance and connection. Gabbro can release blockages of the body, when physically placed on it. Gabbro has a high magnetite content, and can balance the alkalinity of the body .