Ecological estimation of using ammonites in jewelry and interior goods

Mineral composition has been studied in details, estimation of radiational characteristics of ammonites using in jewelry and interior goods has been conducted. High contents of As and Ni exceeding the established norms are fixed in ammonites of pyritic composition. Ammonites of apatite-and-calcite composition are characterized by heightened specific radioactivity 226Ra and Aeff that may exceed the normative values according to Aeff. Uranium oxide and monazite containing radioactive elements have been determined by electronic-and-microscopic studies. We propose to work out normative documents that will allow to estimate permissible concentrations of toxic and radioactive substances in the jewelry and souvenir production.

ecological estimation, ammonite, jewelry goods, toxic and radioactive substance