Assertion: potash | /r/HasProperty | extracted
Facets:
Source sentences:
text: But as the potash is extracted, concentrated, and purified, it becomes more deserving of care.
text: When the potash to be extracted is at a depth of 1000 m or deeper and/or the potash it is located in sedimentary rock then solution mining provides a cost effective, efficient and safe way to extract the resource.