CELESTINA GEODE, OF GOOD CRYSTAL QUALITY, FOUND IN GUARDO, PALENCIA. TRANSPARENT CRYSTALS WITH THE BLUE TONE, TYPICAL OF CELESTINAS,
Celestine, or Celestite , is a mineral derived from strontium sulfate. Its name comes from "Caelestis", the color blue. It is within the classification of sulfates, and anhydrous sulfates. It belongs to the Barite family