Mexican Cantera Opal Cabochon - Jalisco, Mexico demantoid It is thought that early

It is thought that early man carried pyrite to start fires that contributed to his survival

Primarily composed of hydrated calcium silicate

Locality: La Huacana

These stunning stones

Size: 9cm x 5cm x 2

Mexican Cantera Opal Cabochon - Jalisco, Mexico demantoid It is thought that earlyIve always been fascinated by how certain minerals look when they are left partially embedded in their host rock, and this Mexican Cantera Opal Cabochon is a perfect example of that natural contrast. In Spanish, "Cantera" translates to quarry or stone, which refers to the pinkish tan rhyolite matrix that surrounds the precious opal. Instead of being cut out as a traditional gemstone, these specimens are shaped and polished so that the opal sits like a