Including Amethyst Quartz crystals on matrix, likely from Brazil, 4 5/8 x 3 1/8 x 2 1/4 in.; a half geode with white Quartz crystals inside, unsourced, approx. 4 1/2 in. Diam.; and a chalcedony agate half geode with various crystals inside, unsourced, 3 7/8 x 4 1/8 x 1 7/8 in.