Hydroxyapophyllite Barite This piece has relatively weak

This piece has relatively weak reaction compared to many

My Yellow Zebra culture seems a bit loose about their markings and are priced accordingly (more images coming soon

but there is a fine almost spit-like mineral coating that slightly obscures the reflections on the crystal

These pieces can be fascinating to study up-close

one is shaped like two points of a star with symmetry that doesn't seem accidental (second to last image)

Hydroxyapophyllite Barite This piece has relatively weakLocale: N'Chwaning II Mine, South Africa Approx dimensions: 2. 25 x 1 x 1" Approx weight: 52g 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 wulfenite,