Assertion: citrine | /r/HasProperty | heat-treated amethyst
Facets:
Source sentences:
text: Almost all citrine that is available on the market today is heat-treated amethyst.
text: Citrines, with the exception of natural stones, are heat-treated amethysts or smoky quartz.
text: Most citrine on the market today is actually heat-treated amethyst because natural citrine is found only in large quartz deposits in small amounts.
text: Almost all the citrine in jewelry is heat-treated amethyst, which makes it too common to be recognized as a rare or important gem material.