Turgite over Quartz - Spain #12 Rare Crystals_Anandalite This unusual Brewsterite on Calcite

This unusual Brewsterite on Calcite specimen with clear

to fancy Jaspers such as Mookaite and Ocean Jasper that can only be found in small

This beautiful Black Amethyst cluster from Uruguay has incredible sparkle

Precious Opal is typically black or white and is graded on the colour flash displayed

Turgite over Quartz - Spain #12 Rare Crystals_Anandalite This unusual Brewsterite on CalciteThis iridescent Turgite coating over Quartz specimen is from the San Valentin Mine in Spain. You will receive the exact Turgite specimen shown in the pictures. Turgite is a trade name used nowadays to refer to Iridescent varieties of iron oxide minerals, most commonly Goethite or Hematite, that often coat other minerals such as Quartz. As it isn't a single, defined thing, it isn't classified as a mineral, and it's usage had changed over the years,