- Boltwoodite, Calcite
- Small Cabinet, 9.3 x 7.0 x 3.5 cm
- Rossing Mine, Arandis, Swakopmund District, Erongo Region, Namibia
Boltwoodite is a RARE potassium uranyl silicate. This very SHOWY specimen features a horizontal band of radial clusters of super-bright, lemon-yellow boltwoodite needles proudly marching across a large vug covered with smoky-brown calcite scalenohedrons. Ex. Rob Smith Collection.