Assertion: obsidian | /r/HasProperty | carved into decorative shapes
Facets:
value: to ornament the home
type: PURPOSE
Source sentences:
text: Not only can obsidian be carved into decorative shapes to ornament the home and made into beads and cabochons, but light green and yellow material from Peru can be faceted and black obsidian is also often used as the “backing” for opal doublets and triplets.