Epidote with well-formed prehnite sphere Galena These arches are originally created

These arches are originally created by drilling a hole through a chunk of sandstone and sandblasting the material into a smoothed arch

Preferred humidity  Very High  cover about 1/3 with sphagnum moss and use plenty of leaves and hides to retain humidity

they are small dogtooth calcite points

and a later generation of growth deposited the less common hyalite on the specimen

Approx dimensions: 2 x 2 x <1/2"

Epidote with well-formed prehnite sphere Galena These arches are originally createdLocale: Imilchil, Midelt Province, Dra Tafilalet Region, Morocco Approx dimensions: 2. 5 x 1. 5 x 1. 25" Approx weight: 115g After some sleuthing on Mindat I was intrigued to discover the spherical formation on this specimen is prehnite. I actually didn't find one matching this specimen anywhere; all examples were translucent and not opaque. I suspect it could be a feldspar pseudomorph. Prehnite typically does not fluorescebut this one does. Prehnite