Wavellite (Arkansas, USA) | green crystal cluster, mineral specimenWavellite from Arkansas is a classic phosphate mineral best known for its striking radial crystal clusters that form rounded, starburst like sprays. These aggregates are typically composed of slender, acicular crystals that radiate outward from a central point, giving specimens a highly sculptural appearance. Colors range from pale yellow and green to olive, brown, and occasionally bluish hues, often with a silky to vitreous luster. Arkansas wavellite