fluorite

How To Use fluorite In A Sentence

• Overgrowths of fine-grained, bronze-colored siderite are often present on selected faces of the fluorite crystals.
• Minerals such as wolframite, arsenopyrite, fluorite, and quartz are well known from this mine.
• There were shops full of green and purple fluorite, ferberite and arsenopyrite, and spessartine and stibnite.
• Then, because the fluorite crystals that are defined by dark color zoning are wedge shaped and depart from parallelism with pyrite crystals by varying degrees, I concluded that epitaxy did not appear possible.
• The minerals in my set include fluorite, a very pretty piece of sodalite, and a nice piece of polished tiger eye.
• The fluorite tends to occur only as cubes modified by the dodecahedron, with simple cubes or octahedra uncommon or absent.
• Of particular interest are superb specimens of lustrous, pale lavender fluorite crystals, many of which are associated with sphalerite and siderite from what remained of the flats surrounding the Diana vein.
• They collected several pegmatite pockets in which topaz was associated with both clear and smoky quartz, microcline, albite, muscovite, fluorite, and cassiterite.
• The one notable exception to this is the Boltsburn mine, which produced twinned fluorite crystals of good clarity in excess of 10 cm on edge.
• Feldspar has been hydrothermally altered by a fluorine-rich water vapor to quartz, mica (usually lithian), topaz and/or tourmaline with fluorite, cassiterite, molybdenite, rutile, and wolframite as typical accessory minerals.