WE PRESENT THIS PIECE FROM THE PRIVATE COLLECTION THAT WE HAVE FOR SALE. LARGE SIZE CRYSTAL OF A CALCITE CRYSTAL IN PERFECT CONDITION OF WHICH WE CAN OBSERVE THE APOPHYLITE CRYSTALS INSIDE. ON THE OUTSIDE PART OF THE MATRIX NEXT TO THE CRYSTAL WE CAN OBSERVE LARGE-SIZED COMPLETELY TRANSPARENT APOPHYLITE CRYSTALS.