KIDWELLITE
Specimen kid-1

Dims: 3.4 x 2.2 x 2.1" (8.5 x 5.7 x 5.4 cm)

Wt: 9.7 oz. (274 g)

Three Oaks Gap Mine, Coon Creek, Polk County, Arkansas, U.S.A.

A few rounded Kidwellite nodules rest on the pale base rock of this cabinet specimen. Most of these nodules are either broken or naturally incomplete, but one is intact and in excellent condition. The largest measures 0.6" (1.5 cm) in diameter and is broken open, revealing its compact, radial structure. All have a color that ranges from pale to deep green and all show a dull silky luster. A sizeable amount of rusty material (likely limonite) is present in and around the nodules.

Dims: 3.6 x 2.8 x 1.3" (9.1 x 7.1 x 3.4 cm)

Wt: 8.1 oz. (230 g)

Three Oaks Mine, Coon Creek, Polk County, Arkansas, U.S.A.

A cluster of round Kidwellite nodules rests on one side of this cabinet specimen. These clusters reach diameters of 0.5" (1.3 cm) or more, but all of them are broken and incomplete. This breakage allows one to see the compact, acicular and radiating habits of their crystals, which are too fine and tightly arranged for effective study. All have a dull brown-green color and a dull silky luster. Some of these clusters contain limonite in their cores. All rest on a base of botryoidal hematite.

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.