Turgite over Quartz - Spain #12 green A support stone

A support stone

professor of chemistry at Vienna university

and is named after the Greek for "appearing sky-blue" after it's deep blue/ black/ grey colour

Rather than the animal itself

You will receive the exact Dolomite crystal pictured

Turgite over Quartz - Spain #12 green A support stoneThis 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,