Mineralogical characteristic of fluorite from Sivec, Republic of Macedonia

Mineralogy of fluorite from Sivec is presented in this paper including physical properties and chemical composition. Several samples of fluorite were analysed by scanning electron microscope (SEM). SEM is especially useful because is non-destructive method and it gives elemental, mineralogical and morphological data at the same time. From the results it can be concluded that the fluorite is colorless, light purple or dark purple. Fluorite has an attractive vitreous luster. Crystal System is cubic, class m3m (4/m 3 2/m). Appears in cubes {001} or octahedrons {111}. The size of the crystals is about 2 cm. Fluorite is considered one of the most beautiful and interesting minerals by collectors Fluorite has a tendency to chip, and owing to its softness, gemstones must be cut very carefully.