It should not be confused with a proposed mineral species with the identical name ' Tinnunculite ' , that forms when droppings from a European kestrel react with the burning dumps of coal mines and quarries .
Tinnunculite is a naturally - occurring form of dihydrate of uric acid .
Tinnunculite should not be confused with a proposed mineral species with the identical name ' Tinnunculite ' , that forms when droppings from a European kestrel react with the burning dumps of coal mines and quarries .
Tinnunculite is a naturally - occurring form of dihydrate of uric acid .