(1) Emerald-emerald green beryl containing chromium, (2) Aquamarine-iron-containing sky blue to sea blue beryl. (3) Golden emerald-golden yellow beryl containing iron, (4) Dark brown emerald-ilmenite beryl with starlight effect. (5) Rose emerald-beryl containing cesium, lithium or manganese. Tên "Ngọc lục bảo" comes from the transliteration of Persian Zumurud. Ngày xưa nước tôi, it was called "Zumurud" [...]
