Fluorite, Siderite, Quartz - Pit “10.000 Ritter“ Annaberg, Saxony, Germany
 
 Wonderfully structured fluorite cluster on matrix. The clearly defined hexahedra are nicely fused together and culminate in a sharp-edged cube with an 2 cm on the edge. The 6 cm x 4 cm piece comes from the "10,000 Knights" pit near Annaberg in Saxony, Germany and has the typical black color for this site, which, strictly speaking, is a dark purple.