Assertion: obsidian | /r/HasProperty | black
Facets:
value: usually
type: DEGREE
value: pretty much
type: DEGREE
value: because of its conchoidal fracture
type: CAUSE
value: in real life obsidian
type: LOCATION
Source sentences:
text: Obsidian is generally black.
text: But until a few years ago when I made my first obsidian collecting trip to Glass Buttes, Oregon, I thought obsidian was pretty much just black glass.
text: Also called ‘black glass’, obsidian belongs to the geological family known as igneous rocks, which are formed from volcanic lava.
text: Obsidians are black although their color varies depending on the presence of inclusions or trace elements.
text: Obsidian is commonly a translucent dark brown or black.
text: When portrayed in game, obsidian appears to be a purplish-black color, even though in real life obsidian is black.
text: Obsidian is usually black although reddish varieties are pretty common also.
text: Obsidian is usually black.
text: Obsidian is commonly a translucent dark brown or black.
text: Obsidian, a volcanic glass of rather limited distribution, is usually black or very dark and, because of its conchoidal fracture, was used like flint.
text: While obsidian is typically black, it can be found in hues of green or brown and occasionally even yellow, orange, red, or blue if trace elements happen to be present during its formation.
text: While obsidian is typically black, it can be found in hues of green or brown and occasionally even yellow, orange, red, or blue if trace elements happen to be present during its formation.
text: But until a few years ago when I made my first obsidian collecting trip to Glass Buttes, Oregon, I thought obsidian was pretty much just black glass.