- Small Cabinet, 7.5 x 5.2 x 4.0 cm
- Coon Creek Mine, Polk Co., Arkansas, USA
- Ex. Martin Zinn
Unusually good crystals for this rare phosphate species named after Houston collector Al Kidwell, in that they are not the normal rounded "balls" but real crystals, splaying out flat over the matrix here. Some of the green crystals reach 1 cm. Exceptional example of this species which, so far as I know, still comes at its best from Arkansas.