A very RICH and excellent combination specimen of a RARE and an uncommon copper arsenate from the El Guanaco Mine of Chile. Rare, dark green, microcrystals of lammerite are nicely accented with turquoise-blue sprays of uncommon lammerite on a quartz-rich matrix. Choice and rare material from the Charlie Freed Collection. 5.0 x 3.6 x 2.6 cm