gemstone
Aquamarine
Beryl (Be3Al2(SiO3)6)
Hardness of 7.5 to 8 on the Mohs scale, pale blue to light green-blue color, vitreous luster, hexagonal crystal system, poor 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-blue color, vitreous luster, hexagonal crystal system, poor cleavage, specific gravity of 2.68 to 2.74.
Formation & geological history
Forms primarily in pegmatites and metamorphic rocks like schists and gneisses, crystallizing from cooling hydrothermal solutions and cooling magma containing beryllium.
Uses & applications
Widely used as a precious gemstone in jewelry, rings, necklaces, and earrings, as well as valued by mineral collectors.
Geological facts
Aquamarine is the March birthstone and its name comes from the Latin words for water and sea, reflecting its ocean-like color.
Field identification & locations
Can be identified by its distinct light blue or greenish-blue coloration, high hardness, and hexagonal crystal habit when rough, though frequently found polished as tumbled stones or cut gems.
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