Fluorite

CaF₂

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Fluorite is known for its wide range of colors and is the reference mineral for hardness 4 on the Mohs scale. Many specimens exhibit strong fluorescence under ultraviolet light — the phenomenon was actually named after this mineral.

晶系	Cubic (Isometric)
矿物分类	03 Halides
莫氏硬度	4.0
比重	3.13-3.18
颜色	Purple, blue, green, yellow, colorless, pink
光泽	Vitreous
条痕色	White
解理	Perfect octahedral {111}
断口	Conchoidal
透明度	Transparent
晶体习性	Cubic, octahedral