Measurements: 90 x 57 x 34 mm
Description: A rather large prehnite conglomerate crystals on a thin basalt matrix. The bits of whitish mineral on the prehnite is feldspar.
Besides a few small nicks to the centre crystals, the only other notable damage is to the edges.
Weight of Specimen: 177.0 g
Chemical Composition: Ca2Al2Si3O10(OH)2 (prehnite)
Specimen Code: BARG 002
US $ 60