Description

Aegirine, also known as Acmite, is a sodium iron silicate mineral commonly formed in the alkali-rich volcanic rock. It was discovered in 1835 in Norway and got its name from Ægir, the Scandinavian god of the sea. Aegirine has been seen as black, dark green, or brown and can be found in Russia, Canada, South Africa, and the U.S.A.

Quartz is the second most common mineral in the Earth’s continental crust.  It is mainly composed of Silica or Silica based minerals.  Although Quartz is known by a variety of names, the most important distinction between types of Quartz is that of macro-crystalline, individual crystals visible to the unaided eye, and micro-crystalline, where aggregates of crystals are only visible under high magnification.  There are many forms of Quartz including Chalcedony, Amethyst, Citrine, and Carnelian which are results of mineral impurities or heat treatments.