Aquamarine is a pale-blue to light-green variety of beryl. Greenish-blue aquamarine can be changed to pure-blue by heat. The aquamarine has a chemical composition of Be₃Al₂Si₆O₁₈, also containing Fe²⁺. It has a hardness of 7.5 to 8. Aquamarine contains no or little noticeable inclusions
Aquamarine 925 Sterling Silver Ring R155
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