Hydroxyapophyllite with two large intersecting crystals Selenite Approx weight: 90–110g due to

Approx weight: 90–110g due to natural variations of material density

The top of this specimen is a smoky quartz cluster

The starbursts in the rhyolite are spherulites: minerals composed of dense radial needle-like growth from a point to create a sphere (hence "spher"ulite)

Approx weight: 568g

234g  D 4 x 2

Hydroxyapophyllite with two large intersecting crystals Selenite Approx weight: 90–110g due toLocale: N'Chwaning II Mine, South Africa Approx dimensions: 2. 5 x 1. 75 x 1" Approx weight: 71g This specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called "hydroxyapophyllite (K)," hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to