Assertion: obsidian's color | /r/HasProperty | due
Facets:
value: unlike basalt
type: OTHER
value: to high amounts of impurities
type: CAUSE
value: to having crystallized from mafic lava
type: CAUSE
Source sentences:
text: A common misconception about obsidian is that its dark color is due to having crystallized from mafic lava.
text: Unlike basalt, obsidian's dark color is due to high amounts of impurities rather than the presence of dark colored minerals.
text: A common misconception about obsidian is that its dark color is due to having crystallized from mafic lava.
text: Unlike basalt, obsidian's dark color is due to high amounts of impurities rather than the presence of dark colored minerals.
text: Olmec Blue” jade, characterized by an icelike shade of pale blue, owes its unique color to the presence of iron and titanium, while the more typical green jade’s color is due to the varying presence of sodium, aluminum, iron, and chromium.