Assertion: obsidian's property | /r/CapableOf | date in mesoamerica
Facets:
value: for its reflective quality
type: CAUSE
value: back to early civilizations
type: TEMPORAL
value: for ability
type: PURPOSE
value: to be polished
type: PURPOSE
Source sentences:
text: The mystical properties of Obsidian also date back to early civilizations, most notably in Mesoamerica, for its reflective quality and ability to be polished into mirrors.