gemstone
Aquamarine
Beryl (Be3Al2(SiO3)6)
Hardness of 7.5 to 8 on the Mohs scale, pale blue to light green color, vitreous luster, hexagonal crystal system, indistinct cleavage, specific gravity of 2.68 to 2.74
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Physical properties
Hardness of 7.5 to 8 on the Mohs scale, pale blue to light green color, vitreous luster, hexagonal crystal system, indistinct cleavage, specific gravity of 2.68 to 2.74
Formation & geological history
Formed in pegmatites and metamorphic rocks through hydrothermal processes, often crystallization from cooling magma rich in beryllium
Uses & applications
Used primarily as a gemstone in high-end jewelry, collector specimens, and occasionally in industrial applications for beryllium extraction
Geological facts
Aquamarine is the blue to green variety of beryl, named after seawater. The largest gem-quality aquamarine ever found was in Brazil in 1910, weighing over 110 kg.
Field identification & locations
Identified by its distinctive pale blue-green color, hexagonal habit, and high hardness. Commonly found in Brazil, Madagascar, Pakistan, and the United States
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