- Rossing Mine, Arandis, Swakopmund District, Erongo Region, Namibia
- Miniature, 4.1 x 3.0 x 2.8 cm
Boltwoodite is a rare potassium, sodium, uranium silicate. This superb and rich miniature specimen features a well-placed, 3.4 cm vug filled with radial clusters of bright, golden-yellow boltwoodite needles in a calcite-rich matrix. Ex. Mullane Collection, so this would be an old specimen from finds here in the late 1960s and early 1970s.