With the help of magnifying glass, Mikroskop va boshqa asboblar, the magnification inspection of colored gemstones is mainly to observe the internal and external characteristics of the jewels and jade. Internal features include: qo'shimchalar, tuzilish, to'qima, rangli tasmalar, dog'lar, va hokazo.; external features include: original crystal planes, sirt tirnalganlari, ports, and open slit lamps. Kattalashtirish inspektsiyasi […]
