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Fluorite
Fluorite is the mineral form of calcium fluoride and belongs to the halide group of minerals.
Colors It Comes In - The most common colors are purple, blue, green, yellow, or colorless. Less common are pink, red, white, brown, and black.
Manganese: This impurity causes fluorite to turn brown or black.
Iron: This impurity causes fluorite to turn yellow, orange, or red.
Copper: This impurity causes fluorite to turn blue or green.
Yttrium: This impurity causes fluorite to turn purple.
Zirconium: Zirconium impurities can cause fluorite to appear orange or red.
Fracture Pattern - Subconchoidal to Uneven
Shape - Cubic
Luster - Vitreous
Texture - Waxy
Where It Can Be Found -
South Africa, China, Mexico, Mongolia, the United Kingdom, the United States, Canada, Tanzania, Rwanda and Argentina.
If you want to find fluorite in the U.S., some of the best states to search for it are Utah, New Mexico, Kentucky, Arizona, and New York. There are many other states where you can find fluorite. Still, the most important thing is to search for it in quarries, limestone cavities, and ore deposits, among other environments.
Hardness On The Mohs Scale - 4 Out Of 10