Impressive specimen of marvelous Calcite crystals densely covered with Dolomite or Siderite from Djurkovo Mine, Laki, Bulgaria. It displays sharp and perfect scalenohedral Calcite crystals. They are colored with very small and sparkling orange crystals of Dolomite or Siderite – need to be examined.  This gives superb colorfulness. The piece is complete all over. Displays attractively on both sides. In very good condition – some small contacts and nicks.

Fascinating!