Assertion: tellurium's rarity | /r/CreatedBy | condition
Facets:
value: during the formation of the earth
type: TEMPORAL
Source sentences:
text: The rarity of tellurium on Earth is thought to be caused by conditions during preaccretional sorting in the solar nebula, when the stable form of certain elements, in the absence of oxygen and water, was controlled by the reductive power of free hydrogen.
text: The rarity of tellurium on Earth is thought to be caused by conditions during the formation of the Earth, when the stable form of certain elements, in the absence of oxygen and water, was controlled by the reductive power of free hydrogen.