Fluorite (Sample #33)
Colour: White to purple to green and clear
Hardness: 4
Streak: White
Luster: Glassy
Magnetic: No
Conductive: No
Cleavage: Our directions of perfect cleavage
Relative Density: 3.2
Distinguishing Characteristics: It will produce a blue glow under black light. Its hardness and colour banding are identifiable characteristics. It often cleaves into a perfect octahedron.
Uses: Fluorite is often ground and put into tooth pastes and drinking water. It is often used in ceramics as a non-stick coating such as Teflon and other shiny surfaces. It can also be ground and melted to make high quality glass.
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