Yellow Calcite – Sokolovskoe Iron Mine, Rudny, Kostanay Region, Kazakhstan
 A particularly clear, yellow calcite crystal from the Sokolovskoe Iron Mine in Kazakhstan with fluorite on a matrix. The crystal is beautifully crystallized throughout. An aesthetic piece with interesting surfaces and good luster.
 Yellow calcites from Kazakhstan are rare today and are already considered a classic collection.
 Find from the 1990s.