Green Fluorite
Fluorite · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Cubic (Isometric) system, typically forming cubic or octahedral crystals, though this specimen is tumbled and polished into a smooth, rounded pebble shape.
Mineral Group
Halides
Chemical Formula
CaF2
Formation Process
Hydrothermal and pneumatolytic processes, typically crystallizing from fluorine-rich aqueous solutions in veins, cavities, and replacement deposits at low to moderate temperatures.
About This Crystal
This is a tumbled, polished specimen of green fluorite. It exhibits a deep, translucent sea-green to bluish-green coloration with internal veining and lighter-colored fractures, displaying a vitreous luster.
Physical Characteristics
Color ranges from light green to deep teal; streak is white; perfect octahedral cleavage in four directions; fracture is conchoidal to uneven; specific gravity is approximately 3.18; brittle tenacity; frequently exhibits strong fluorescence under ultraviolet light.
Optical Properties
Singly refractive (isotropic); refractive index of approximately 1.434; weak or no pleochroism due to its isometric crystal system.
Hardness & Durability
Origin Region
Global distribution including China, Mexico, South Africa, the United Kingdom, and the United States. It commonly forms in hydrothermal veins and carbonate host rocks.
Hardness & Durability
Mohs hardness of 4, making it relatively soft and easily scratched by quartz or steel; low toughness due to perfect cleavage, requiring careful handling to prevent breakage; poor wearability for rings unless protective settings are used.
Care & Maintenance
Clean gently with warm, soapy water and a soft cloth; avoid ultrasonic cleaners, steam cleaners, harsh chemicals, and prolonged exposure to direct sunlight which can fade the green color; store separately from harder gems to avoid scratching.
Rarity & Value
Common; widely available and affordable, though intense color saturation and high clarity can increase the value of collector specimens; generally untreated, though lower-quality material may occasionally be stabilized or dyed.
Special Characteristics
Often exhibits strong fluorescence under ultraviolet light (typically blue or violet); notable for its distinct cubic cleavage and soft feel relative to quartz.
Lore & History
Historically used for decorative carvings and ornamental objects due to its vibrant colors and softness; in modern crystal healing, green fluorite is traditionally associated with the heart chakra, mental clarity, emotional balance, and absorbing negative energies, though these are cultural beliefs rather than scientific claims.