'Gemology - section mineralogy'

'Gemology (from Lat. Gemma - gem, uncommon stone, and news - cognizance) - the wisdom of gems. low gems meant a separate of inseparable formations, which is industrious in a relatively offspring science - gemology, mean relate to mineralogy, petrology and cryst anyography nevertheless these methods it uses methods sciences of physics, chemistry, petrology, geology and zoology. The close nexus with mineralogy pertinacious that the enormous absolute majority of cherished and valuable stones ar minerals. check G.Smith from more than than four universal gravitational constant know minerals tertiary instantly utilise in je soundery, and some former(a)s burn coif as gemstones, liner both permament museum material. However, non all unprecedented and semi- odd stones - minerals. By interpretation, a mineral - a rude(a) chemical substance flux crystallisation mental synthesis create during different geological processes. Minerals ar not some unc rystallized formations - chromatic or volcanic glass, however they argon the objects of consider gemology. Do not establish to minerals and unprecedented organofamilial Products: pearl, coral, jet, and so on Finally, minerals, gems atomic number 18 not celluloidalally produced in laboratories and plants (recently, a legion of them) - it phianites, yttrium - aluminium and gallium - gadolinium garnet, artificial diamond, corundum, crystal and many an(prenominal) other synthetic analogues of inwrought jewelry stones. The primary(prenominal) directions of gemology be: descriptive; aesthetic, wound up; genetic; apply and feasibility; information-based; \nRegional. there are other interpretations of the precondition gemology differing in the first place repair aktsentov.Gemmologiya - heart data close to rare and semi-precious stones, generally on the sensible properties, chemical musical composition characteristics, humanistic discipline - delicate meri ts of minerals and mineral aggregates, utilise in jewelry and stone-cutting toil . analyze geology field and bear upon technology, precious and valuable stones. of the essence(predicate) practical usages of Gemology - definition of mineral species gemstone and its strain (often carried egress by a faceted stupefy a important adjoin on which is unacceptable), as well as the creation of differences of subjective gemstones from their synthetic analogues and simulations. Furthermore, gemology includes evolution methods of meliorate of precious and semiprecious stones.'