Description

The Tourmaline mineral group is chemically one of the most complicated groups of Silicate minerals.  Its composition varies widely with Sodium, Calcium, Iron, Magnesium, Lithium, Aluminum, Boron and other elements.  It has a wide variety of colors including black, blue-black, brown, yellow, red, green, pink and is rarely colorless.  This mineral is found in igneous rocks, like Granite Pegmatite, and metamorphic rocks such as Schist and Marble.

Albite is a common feldspar mineral and a sodium aluminosilicate that occurs most widely in pegmatites and felsic igneous rock such as granite. It also may be found in low-grade metamorphic rocks. Albite usually forms brittle, glassy crystals that may be colorless, white, yellow, green pink or black.