USA102 - Kidwellite and Strengite on Beraunite - Three Oaks Gap, Polk County, Arkansas

Excellent cabinet specimen of this rare hydrated phosphate. According to the Fender Natural Resources label, it was collected by its namesake, Al Kidwell. The yellowish-green kidwellite covers a matrix of reddish-brown beraunite, another hydrated phosphate. In addition, there are spherules of strengite to almost 2 mm scattered on the specimen. Overall, this is a fine example of three hydrated phospates in one! For more information on kidwellite, please see The Handbook of Mineralogy or Mindat. 8.6 x 5.8 x 4.1 cm.