Green Opal Crystal Freeform 7.5cm Large Fossil Display Pieces This Large Druzy Flower Agate This Large Druzy Flower Agate Crystal Pebble (otherwise known as a Flower Agate Crystal Palm Stone) has been carefully cut and polished by artisans to enhance the kaleidoscope of soft pink 3cm long piece is a section from a Fossil Wood log that has been polished on its top and base to reveal the vividly coloured Jaspers which have replaced the original wood very slowly in the process of silicification This stunning Green Opal Crystal Freeform would make a fine addition to any crystal collection for minerals have clearly defined crystal structures