The fabulously rich silver mines at Guanajuato, Mexico have produced some outstanding amethyst specimens and this is an excellent and unusual combination example. This fine, two-sided cabinet piece is distinctively different, than most you see from any other locality. There are actually two generations of quartz on this piece, which is wonderfully peppered with milky-white calcite rhombs on one side. The frontal face is composed of interesting looking, doubly terminated amethyst crystals. The sharp amethyst terminations are composed of water-clear, colorless quartz. Looking down onto the crystals gives a surreal phantom-like look. Uncommonly very fine material from this famous locale. Old finds, circa 1970s or early 1980s. Ex. Consie Prince Collection.