CalciteA seldom seen Calcite from the Osceola Mine along the Animas River near Silverton. This specimen features sharp, well formed rhombohedra of Calcite up to 1. 2 cm that have a medium chocolate brown coating of an unknown manganese oxide. Additionally, the crystals are sitting on excellent quality, lustrous, GEM gemmy Quartz prisms on matrix. From the collection of T. M. Phetteplace (specimen #1161) originally purchased from the famous Columbine Mineral

but those specimens are typically white

well-formed crystals

but not often are the crystals as large

when Huanuni had a short

The specimen has a three-dimensional flowing appearance as the Opal formed little ridges here and there

Most people are familiar with the Copper pseudomorphs after Aragonite from this locality

Regardless

or if you like unusual

These are some of the best quality Baryte crystals that I’ve seen from Muddy Creek

bright yellow-green hexagonal crystals of Pyromorphite sit atop Sandstone matrix

While looking under the microscope

west of Highway 141