Dims: 1.6 x 0.7 x 0.6" (4.1 x 1.8 x 1.5 cm)
Wt: 10.3 g)
Rossing Mine, Swakopmund District, Namibia
This thumbnail specimen consists of 3 or 4 small clusters of radiating Boltwoodite needles that rest on a calcite or siderite base. One of the clusters is much larger and more full than the others, containing hundreds of crystals- the smaller ones each contain less than 10 crystals. The crystals are in very good condition and are almost too small for one to effectively study their monoclinic form. Their deep yellow coloration and dull pearly luster are standard for material from this locality. They rest on what appears to be a very thin goethite crust that covers the base.