Assertion: garnet's discovery | /r/HasProperty | equivalent
Facets:
value: to the discovery of the element
type: OTHER
Source sentences:
text: In the decades after Antoine Lavoisier developed the first modern definition of chemical elements, it was believed that earths could be reduced to their elements, meaning that the discovery of a new earth was equivalent to the discovery of the element within, which in this case would have been yttrium.[note 6]