Found at the upper Kohanza lake reservoir. It is a whole geode of Prehnite with Spalerite and Calcite. the Prehnite crystals range up to 25.4mm, Sphalerite up to 6.35mm, and Calcite up to 25.4mm. Left specimen is 1lb 14oz 14.1 cm wide x 7 cm high x 8.9 cm depth and contains Prehnite with Calcite and traces of Sphalerite. Middle specimen is 3lb 14oz 14 cm wide x 12.7 cm high x 13.3 cm depth and contains Prehnite with Calcite. The right specimen is 1lb 1oz 12.1 cm wide x 7 cm high x 7cm depth and contains Prehnite with Calcite and an abundance of Sphalerite. i found this in an area that most likely came from O and G in Southbury, CT. With Sphalerite being very rare in locality it is truly a beautiful piece to own. shipping included.