Green Fluorite

Physical Properties

Hardness: 4 (Mohs scale), Color: Pale green to translucent, Luster: Vitreous (glassy), Crystal Structure: Cubic/Isometric, Cleavage: Perfect octahedral, Specific Gravity: 3.175–3.184

Formation & Geological History

Commonly forms in hydrothermal veins where cooling fluids deposit minerals, or as an accessory mineral in granitic and other igneous rocks due to late-stage volcanic activity.

Uses & Applications

Used in the manufacture of hydrofluoric acid, as a flux in steel making and aluminum smelting, and high-quality specimens are used for semi-precious ornaments and jewelry.

Geological Facts

Fluorite is often called 'the most colorful mineral in the world.' It is the primary mineral used to define hardness scale 4 and gave its name to the phenomenon of fluorescence.

Field Identification & Locations

Identify in the field by its cubic crystals, octahedral cleavage, and softness (it can be scratched by a pocket knife). Often found in association with lead and silver ores.

Identified on: 5/2/2026

Mode: Standard