Aquamarine Green Yellow Mix Natural 10mm Round - 15-16 Inch - CLEARANCE NONE Cabochons are not drilled A natural blue form of

A natural blue form of calcium sulfate

especially in Asian cultures

Opals are hydrated amorphous forms of silica

silicon dioxide

so named because the ancient Incas believed the stone to be the petrified blood of their ancestral rulers

Aquamarine Green Yellow Mix Natural 10mm Round - 15-16 Inch - CLEARANCE NONE Cabochons are not drilled A natural blue form 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.