Fluorite is an important fluorine-containing mineral in nature, donc on l'appelle aussi “fluorine”. A small number of fluorites are octahedrons and rhombic dodecahedrons, and some are twin crystals. Fluorite has glass luster, transparent à translucide, hardness is brittle and easy to break, colorless and transparent are rare, mostly blue, vert, violet, and white, mais […]
