Assertion: chalcopyrite's color | /r/CapableOf | obtain on heating amethyst
Facets:
Source sentences:
text: Depending on the location and environment of the Fe the color obtained on heating amethyst is either yellow (citrine as in most amethyst) or green (the "greened amethyst" from Montezuman, Rio Prado, Brazil; Rose and Lietz, 1954).