Some of the largest and most displayable specimens of Wavellite have come from the Siglo XX mine in Bolivia as described by Mark Bandy. This piece does not disappoint with dozens of fine, large, whitish-yellow color, sphere-shaped radiating aggregates measuring up to 1.1 cm on gem clear crystals. This is a good large cabinet size specimen of an uncommon mineral. 22.5 x 19.7 x 4.6cm