Aquamarine 4mm Round AAA Grade - 15-16 Inch Rock Crystal a 19th-century German professor of

a 19th-century German professor of chemistry and mineralogy

iron or manganese impurities within the stone

Spinel is a hard vitreous magnesium aluminum oxide

hackmanite is named for Finnish geologist Victor Hackman

as well as facilitating prophetic dreams and visions

Aquamarine 4mm Round AAA Grade - 15-16 Inch Rock Crystal a 19th-century German professor ofAquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent to opaque and is commonly light blue, green and yellow with white and gray inclusions. The name is the Latin term for water of the sea. Aquamarine was once thought to be the treasure of mermaids, as well as a lucky stone for sailors.