Assertion: obsidian | /r/ObjectUse | used for scrying
Facets:
value: for thousands of years
type: TEMPORAL
value: in polished spheres
type: LOCATION
value: in concave mirrors
type: LOCATION
value: in flat, gleaming sheets
type: LOCATION
Source sentences:
text: Obsidian has been used for scrying and divination for thousands of years, in polished spheres, concave mirrors and flat, gleaming sheets.