Dims: 2.80x2.47x2.25in (7.12x6.27x5.73cm)
Wt: 9.56oz (271g)
Coon Creek, Polk County, Arkansas, USA
One side of this specimenhas an exposed cavity lined with a crust of pale green kidwellite. A loupe reveals that the kidwellite is in tiny botryoidal masses showing no hint of crystal form, even along the broken edges. However, tiny patches of rockbridgite are visible along some edges. The back of the specimen is also interesting, showing a dozen broken radial clusters of duffrenite, with several other minerals also present including more kidwellite.