Collection grade fluorescent Uranyl-included Chalcedony (green in short wave) and Calcite (orange-red and pink in short wave) "Watermelon Chalcedony" mineral specimen (0.2kg).
Watermelon Chalcedony is also fluorescent in the midwave UV light (not shown here).
Country of origin: United States, Nebraska, Oglala grasslands.
All stock is located in Australia.
Combined shipping is available for orders with more than one item.