Dims: 1.01x0.64x0.44" (2.56x1.62x1.11cm)
Wt: 0.16oz (4.4g)
Auerbach, Oberfalz, Germany
Multiple crystals of limonite are cemented together by sprays of churchite-(Y) crystals. Some of the churchite clusters are complete fuzzy balls, but mostly the surface looks more like a fuzzy crust. Many of the surfaces are actually the bases of the churchite crystals, where the host limonite has fallen away. Many of the clusters are broken open, revealing the radial structure of the crystal growth. Note that the churchite is white, and the individual acicular crystals appear translucent. Many of the clusters have a dusting of red-brown limonite.