“geode with violet quartz var amethyst crystals up to 10 mm with chalcedony on a basalt matrix
discovered late 2018 whilst digging a canal
collection Raymond Dedeyne (RCD3467 - 06/2019), ex Sami Makki/Matrix India at Sainte Marie
photo and copyright Theo Muller”
Raymond Dedeyne - 24th October 2019