Varietas utama batu permata chrysoberyl, cat's eye and alexandrite, adalah permata berharga yang penting di dunia. In addition to cat's eye and alexandrite, batu permata chrysoberyl juga termasuk chrysoberyl, which refers to gold that does not have the discoloration effect and the cat's eye effect. Permata zamrud. Diantaranya, tidak ada efek optik khusus, [...]
