Assertion: anthracite's luster | /r/HasProperty | submetallic
Facets:
Source sentences:
text: Anthracite, often referred to as hard coal, is a hard, compact variety of coal that has a submetallic luster.
text: Anthracite, often referred to as hard coal, is a hard, compact variety of coal that has a submetallic luster.
text: Anthracite, often referred to as hard coal, is a hard, compact variety of coal that has a submetallic luster.
text: Anthracite, often referred to as hard coal, is a hard, compact variety of coal that has a submetallic luster.