Prehnite finger cast after Anhydrite Michigan I believe that this could

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

it shows a gorgeous reddish or golden pink hue on the edges

undamaged Brookite thumbnails like this from any locality

whitish color scalenohedra of Calcite along the edge of the specimen

The crystals have good luster

Prehnite finger cast after Anhydrite Michigan I believe that this couldA 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,