Ammo, bu juft marvarid "opa-singillar" ga o'xshamaydi "er va xotin meniki" realgar va orpiment, bu "egizak meniki" galena va sfalerit ko'pincha birga yashaydi, lekin ko'pincha bir tomonda yashaydi. Sababi, bu ikkisi turli muhitda shakllangan: rubies are mostly produced under geological and geochemical conditions that are high [...]
