Assertion: chalcogenide glass | /r/HasProperty | group 15 element
Facets:
Source sentences:
text: Infrared glass filters are often made of chalcogenide glass, composed of two non-oxygen group 16 elements (sulfur, selenium, tellurium) and one group 14 element (silicon, tin, lead) or group 15 element (phosphorus, arsenic, antimony, bismuth) in its most simple form.