i Register
In some senses, obsidian is marked as poetic. Watch for register when choosing this word.
ADJ.
blackest, cross-cultural, igneous, maverick, pure, translucent
VERB + OBSIDIAN
appeared, made
OBSIDIAN + NOUN
moonlight, pierce, sky, volcanoes
PREP.
across, from, from, in
ADV.
almost, ever