What does «amatista» mean in Spanish?
- Transparent violet colored quartz, used in jewelry as a fine stone. It is a variety of quartz, transparent, in coarse crystals, dyed with beautiful and characteristic purple color by ferric and magnesium compounds. It is often found lining geodes or internal hollows of rocks; it is also found in mineral veins. It is one of the most valuable semi-precious stones and is often faceted for use in rings, bracelets and other jewelry.