Rangli marvaridlar yuqori qiymat toshlari. Odamlar toshlarni bilishni boshlaydilar, va ba'zi chiroyli toshlar xazinalarga aylanadi. Fan rivojlanishi bilan, geologlar asta-sekin turli toshlarning ilmiy tasnifini o'tkazdilar, ularga o'z ismlarini berish. Mamlakatimizda Gem sanoati faqat 1980-yillarda ishlab chiqilgan, after which the concept of gems gradually […]
Yorliq arxivi: Main features of natural colored gemstones
3) Transparency and purity: Transparency refers to the degree to which colored gemstones can transmit light, and purity refers to the amount of impurities inside the gemstone. Although colored gemstones cannot be clear and transparent, higher transparency will improve their overall quality. The transparency and purity of colorless gemstones are important factors for the beauty […]