obsidian
Other forms: obsidians
Obsidian is a type of black or dark glass formed from cooling lava. So if you find a shiny, hard, dark piece of glass next time you’re hanging around a volcano, it’s probably a piece of obsidian.
The word obsidian essentially means “stone of Obsius.” So who was Obsius? According to an ancient Roman writer, he was the guy who first found this type of stone in Ethiopia. You’ll find obsidian used as a modifier a lot. Think of an obsidian arrowhead, blade or mirror. Sometimes it is used as a fancy way of describing people’s eyes in romance novels as in, “Her eyes were dark and shining, two obsidian orbs.”
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acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces
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type of:
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volcanic glass
a kind of natural glass produced when molten lava cools very rapidly
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volcanic glass
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Vocabulary lists containing obsidian
Sixteen-year old Sarah is thrown into an existential crisis as she struggles to regain her artistic abilities while struggling with her parents' toxic relationship in the urban ruins of Philadelphia.
After Earth is destroyed by a comet, twelve-year-old Petra Peña wakes up on a new planet and discovers she is the only one who remembers Earth. She must use her stories and her wits to save humanity's legacy.
Thirteen-year-old Sikander Aziz must join forces with the legendary hero Gilgamesh to stop an ancient god from destroying New York City.
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