Fluorite Octahedrons

CaF2 - Mohs Hardness: 4.  Fluorite is considered to be one of most popular minerals in the world among gem and mineral collectors, second only to quartz. Fluorite was first described in 1530 and was originally referred to as 'fluorspar'. The mineral was strongly noted for its effectiveness as a flux for aluminum and steel processing. Today, the term 'fluorspar' is primarily used for the industrial and chemical form of fluorite,
Abstract/Description: CaF2 - Mohs Hardness: 4. Fluorite is considered to be one of most popular minerals in the world among gem and mineral collectors, second only to quartz. Fluorite was first described in 1530 and was originally referred to as 'fluorspar'. The mineral was strongly noted for its effectiveness as a flux for aluminum and steel processing. Today, the term 'fluorspar' is primarily used for the industrial and chemical form of fluorite,
Subject(s): environmental sciences