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Geology: Rocks, Minerals & Ores Mineral Sequence in the Cady Mountains FluoriteCaF2 (octahedral)Ludlow, Mojave Desert, CA << - >> Mineral Sequence in the Cady Mountains |
Fluorite -
(Isometric) Most commonly octahedrons and cubes. Seldom occurs in dodecahedral crystals. Crystals are frequently combinations of octahedrons and cubes, and dodecahedral growths are sometimes present, forming complex and interesting crystals. Cleavage marks are present on basically all crystals. Cleavage fragments from large crystals are also found. From octahedrons, the cleavage fragments are flat, triangular shaped pieces. Cubic cleavage fragments are flat, three dimensional rectangles. Crystals frequently form penetration twins, where one cube is intergrown in another. Also occurs as clusters of intergrown cubes, grainy, and massive. Minerals,net |
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