and metamorphic rocks worldwide

but a color and hardness that holds up to daily wear

and Aquamarine until formal mineralogical classification in the late 18th century

The band is solid

a shape that reflects the trigonal symmetry of the quartz system

Blue Opal Sterling Silver Pendant STRESS RELIEF and metamorphic rocks worldwideThe surface plays color like oil on still watershifting, layered, never fixed. Blue Opal is a hydrated silicon dioxide, an amorphous (non crystalline) mineraloid carrying 510% water within its silica structure. The color, from pale aqua to deep cerulean, comes from the diffraction of light through its submicroscopic silica spheres rather than from pigment. This piece is formed into a freeform shape and set in solid . 925 sterling silver, preserving