Assertion: mineral | /r/HasProperty | pyroxene
Facets:
Source sentences:
text: Minerals that easily meet these criteria include: plagioclase feldspars, alkali feldspars, quartz, pyroxenes, amphiboles, micas, clays, olivine, calcite and dolomite.
text: Minerals that often display parting include the pyroxenes, hematite, magnetite, and corundum.