 | "These are some very nice specimens of finely branching, extra-sharp PSILOMELANE(mangenese) DENDRITES on LIMESTONE from SOLNHOFEN, GERMANY. Under the right conditions, pressure and heat, the manganese (psilomelane) forms superb dendritic specimens that resemble fossil ferns. They are sometimes mistaken for fossils, but are really a very unique presentation of manganese (psilomelane) on the Limestone matrix." Location: Size: 7.6 x 6.3 cm. Weight: 0.4 lbs. Quantity Available: 2 Price: $30.00 |