Synthetic Composition : Be3Al2Si6O18 + Fe
Hardness : 7.5 – 8.0
Particular Gravity (Density) :2.66 – 2.80 (g/cm3)
Refractive Index : 1.567 – 1.590 Uniaxial ( – )
Sea green/blue Gemstone is the blue to blue-green assortment of the Beryl Group of minerals that likewise incorporates Bixbite (red), Emerald (green), Goshenite (lackluster), Heliodor (yellow), Morganite (pink) and Pezzottaite (rosy pink). Large Aquamarine gems have been discovered including the popular Martha Rocha precious stone, found in Brazil, that weighed 134 pounds and yeilded 300,000 carats of great blue diamonds! Sea green/blue gets its blue-green shading from hints of ferrous iron added to the essential Beryl recipe. Sea green/blue is the birthstone for March.
Sea green/blue is known from many sources overall including Afghanistan; Australia; Minas Gerais and different areas in Brazil; more than fifty particular areas in Madagascar; Myanmar (Burma); Namibia; Pakistan; Russia; Sri Lanka; and in the USA at San Diego County, California; Mt. Antero, Colorado; Connecticut; Maine; and North Carolina.