Assertion: opal's water | /r/CapableOf | percolate through the earth
Facets:
value: under the proper conditions
type: OTHER
Source sentences:
text: As water percolates through the Earth, it dissolves minerals.
text: As water percolates through the Earth, it also picks up many ingredients.
text: Under the proper conditions, water percolates through the earth, becoming rich in dissolved silicates.