Aquamarine
Natural stone
The blue to blue-green beryl, a sister of emerald but far less included and tougher. Most aquamarine is gently heated to take away green tones.
Hardness (Mohs): 7.5–8
Natural stone
The blue to blue-green beryl, a sister of emerald but far less included and tougher. Most aquamarine is gently heated to take away green tones.
Hardness (Mohs): 7.5–8