Blue Andean Opal

Amorphous Silica

5.5–6.5Hardness (Mohs)

SiO₂·nH₂OChemistry

1Known origins & mines

Peru's signature sky-blue opal-CT colored by copper inclusions, mined in the Acari district since the 1980s - Caribbean Sea trapped in stone.

Known origins & mines

Active mining · Legendary locality

Peru's signature sky-blue opal district on the Arequipa coast, mined since the 1980s.…