Assertion: chalcedony's color | /r/HasProperty | achieved
Facets:
value: by heating amethyst
type: MANNER
value: more often
type: DEGREE
Source sentences:
text: Natural Lemon Quartz is mined in Brazil and Africa, but more often this color is achieved by heating Amethyst (another color variation of Quartz) together with iron to finish the process nature started.