Aquamarine Faceted Sterling Silver PendantBlue green and faceted, it carries the look of shallow coastal water locked into stone. Aquamarine is the blue to blue green variety of berylberyllium aluminum silicatecolored by trace ferrous iron (Fe). It forms in granitic pegmatites and hydrothermal veins, typically in well developed hexagonal prisms. Mohs 7. 58, with vitreous luster and good transparency. The color ranges from pale sky blue to a more saturated sea blue green; most commercial