Fluorite with dolomite - Villabona (Oviedo), Asturias, Spain
 
 Beautiful contrast of yellowish fluorite cubes and pearlescent, saddle-shaped dolomite crystals on a 5 cm x 4 cm piece from Villabona near Oviedo in Asturias, Spain. Both the fluorite and the dolomite are of very good quality and have a great lustre.