With the help of magnifying glass, mikroskop i inne instrumenty, the magnification inspection of colored gemstones is mainly to observe the internal and external characteristics of the jewels and jade. Internal features include: inkluzje, struktura, tekstura, kolorowe paski, plamy, itp.; external features include: original crystal planes, zarysowania powierzchni, ports, and open slit lamps. Kontrola powiększenia […]
