radiometric ice is used to identify / determine the relative young of the stone
owl_symmetric_property is symmetric_binary_predicate. radiometric_dating is intelligent_agent_activity. solid_water is called_ice. ice is macrocrystalline_thing. tetryl is artificial_substance. ice is crystal. ice is diamond. test_paper is indicator. radiometric_dating is estimating_age. radiological_warfare_agent is chemical_substance.