Assertion: citrine | /r/CreatedBy | heating amethyst
Facets:
Source sentences:
text: Most citrine is made by heating amethyst, and partial heating with a strong gradient results in “ametrine” – a stone partly amethyst and partly citrine.
text: Most citrine is made by heating amethyst, and partial heating with a strong gradient results in “ametrine” – a stone partly amethyst and partly citrine.