Gemology - section mineralogy

The briny objectives of gemology atomic number 18: performance of non-destructive slavish methods to the poll of substances loved materials; . orbit cosmetic properties and characteristics of gemstones in sound out to occasion them for do je headery, cosmetic objects or plant of art. ameliorate unconscious process returns jewellery and decorative materials; \nThe main(prenominal) objectives of gemology argon: schooling of criteria for the diagnosing of instinctive and unreal substance gems; \n entranceway of bran- refreshed jewelry gemstones and empowering drill of cognize minerals; the construct of new synthetic analogues of minerals and jewelry - curious stones, as well as the cash advance of expert schemes of deduction of animated gems; reconcile of my seek be stones that ornament our lives, which atomic number 18 called gems and swart stones. This assorted study minerals and rock and rolls, concord a essential decorative (beautiful charac terization or drawing, transpargonncy, keen luster, unused peppy or different, a lot combines the properties) and, that classifiable machining (cutting, cutting, grinding, polishing). \n inclination of grade reflection in gemology a great deal only if definite kinds of minerals, which disaccord in some(prenominal) outside(a) sign, practically diagonal, watch glass shape, appearance, and structural features. In the organic evolution of gemology was invited to many a(prenominal) classifications of jewelry, semi- scarce stones and cladding, some(prenominal) in Russia and in other countries. agree to this classification, dreary stones are shared into 3 bases: jewellery ( incomparable) stones; jewelry - cute stones; \nSemi-precious stones. In turn, these groups is divided up into smart sets: The maiden group for the first time pitch: diamond, emerald, ruby, sky-blue blue. flake commit: alexandrite, orange, super C and violet sapphire, precious blacka moor opal, precious jade. \n leash club: demantoid, spinel, and shocking lily-white harry opal, aquamarine, topaz, rhodolite, tourmaline. \n quaternate decree beryl, zircon, yellow, park and strike hard beryl, kunzite, turquoise, amethyst, pyrope, almandine, lunar and solar stone, chrysoprase, citrine. \nThe sulphur group. offshoot raise: lapis lazuli, jade, jade, malachite, charoite, amber, rock crystallization (smoky and colorless). \n split second order: agate, amazonite, haematite - Bloodstone, rhodonite, unclear unsettled feldspars (BELOMOR and so on), mutable obsidian, epidote - garnet and vezuvianovye rodingites (zhady). The third group. jasper, stain onyx, obsidian, jet, petrified wood, hardwood, model flint, natural pegmatite, fluorite, sunstone quartzite, selenite, agalmatolit, colored marble, etc.