This drusen is typified by the co-crystallization of the zeolite minerals apophyllite and stilbite. Apophyllite forms perfectly lustrous, sharply demarcated greenish to blue square crystals. Stilbite consists of conglomerates of straw-like shiny and opaque crystals of a soft orange color in the shade of apricot. These minerals are found in melaphyres of prehistoric age, we can find similarly old volcanics in the Czech Republic at well-known agate localities such as Kozákov or the surroundings of Novopack. However, this specimen is from the locality of Poona, India.
