Prehnite finger cast after Anhydrite Michigan From my father’s collection originally

From my father’s collection originally

whitish color scalenohedra of Calcite along the edge of the specimen

"sword"-shaped crystals of Vivianite with a bit of attached red altered sandstone from Tomokoni

NOTE: Even though Calcite is widespread in the world

I believe that this could be a twinned crystal only because I can see what I would call a clear reentrant angle in the middle of the crystal

Prehnite finger cast after Anhydrite Michigan From my father’s collection originallyA beautiful miniature sized specimen with a central finger shaped cast with good luster, color and gemminess. The piece is associated with a few off white colored Calcite scalenohedra. Good quality for the material, and a worthwhile specimen from this fantastic discovery. The Prospect Park Quarry is arguably the most famous mineral producing basalt quarry in New Jersey and, for over a century, has provided collectors with impressive display specimens,