Measurements: 54 x 44 x 20 mm
Description: A high quality prehnite aggregate shares a basalt matrix with calcite crystals and bits of epidote, as well as a few very minute (?)analcime crystals.
The prehnite apears to be undamaged, but some of the calcite crystals are badly damaged.
Weight of Specimen: 53.7 g
Scale: (prehnite) 6-6.5
US $ 65