Mango Quartz with Halloysite inclusions

Item Description

Striking and artistic spray of "mango" quartz crystals is aesthetically set on the sculptural large matrix from recent finds at Cabiche. The fine yellow color of the terminations is a striking contrast above the water-clear, colorless quartz bodies. The dominating large crystal with the stunning multiple terminations is 5.5 cm tall. The crystals in the cluster are complete all-around and pristine. The distinctive yellow to orange color of the inclusions in the terminations above the water-clear bases has nicknamed these striking, colorful quartz crystals as "Mango Quartz". Initial analyses indicated the included yellow material was Humboldtine, a rare authigenic organic mineral, but further testing suggested the material is Halloysite, a clay mineral. The broken quartz point on the left side of the matrix is certainly only a modest detraction to this colorful, showy and fascinating Colombia quartz. These first hit the market in 2017 and were a big hit at shows. See the 2019 Rock & Minerals article in Vol.94, No. 3. A very showy and highly representative example of the species and locale.