David K. Joyce


4.0x3.4x2.9 cm
Pennington County

South Dakota, USA


Item number: 22156

This very interesting fragment of mineralization has a number of elongated, silvery lollingite crystal sections embedded in it. The matrix is also interesting, although I'm not sure exactly what it is. It seems to be composed largely of a purple mineral that looks a lot like cordierite. Unusual locality piece!