Prehnite finger cast after Anhydrite with Calcite type locality and it is crystallized nearly

and it is crystallized nearly all the way around

and it resided in his collection until he passed in 2025

Mineralogy : "The goal of collectors in respect to Vivianite specimens

Wonderfully gemmy

and this one would make a great addition to any Colorado collection

Prehnite finger cast after Anhydrite with Calcite type locality and it is crystallized nearlyA beautiful, undamaged, light green color, isolated finger shaped cast of Prehnite after Anhydrite with lovely soft luster and gemminess sits among several spherical aggregates of Prehnite which are associated with off white color scalenohedra of Calcite on matrix. The piece is in great shape for the material and truly looks better in person as it was somewhat difficult to photograph. The Prospect Park Quarry is arguably the most famous mineral