mineral
Aquamarine
Beryl (Be3Al2Si6O18)
Hardness: 7.5 to 8 on the Mohs scale. Color: pale blue to light green. Luster: vitreous. Crystal structure: hexagonal. Cleavage: imperfect. Specific gravity: 2.68 to 2.74.
- Hardness
- 7
- Color
- pale blue to light green
- Luster
- vitreous
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Physical properties
Hardness: 7.5 to 8 on the Mohs scale. Color: pale blue to light green. Luster: vitreous. Crystal structure: hexagonal. Cleavage: imperfect. Specific gravity: 2.68 to 2.74.
Formation & geological history
Forms in pegmatites and hydrothermal veins. Often found in granitic pegmatites.
Uses & applications
Predominantly used as a gemstone in jewelry.
Geological facts
Aquamarine is the birthstone for March. The name comes from the Latin for 'seawater'.
Field identification & locations
Identify by its light blue color and hardness. Commonly found in Brazil, Madagascar, and parts of the US.
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Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
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