This rare and unique piece weighs 23

It can also form crusts

cream to pale yellow

Name: Apophyllite and Prehnite Crystal Cluster

Color:  Deep Blue

Smithsonite Crystals on Matrix | Perky Box Thumbnail Specimen | Chihuahua, Mexico | SO24 Scholzite This rare and unique pieceSmithsonite can occur in a variety of colors, including white, grey, blue, green, pink, brown, and yellow. Its coloration is often influenced by impurities present during its formation. The crystals can be transparent to translucent, with a vitreous to pearly luster. It commonly occurs as botryoidal (rounded, globular masses resembling a bunch of grapes) or reniform (kidney shaped) aggregates. It can also form crusts, stalactites, and stalagmites.