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Definitions from WordNet

Definitions from the Web

Volcanic Glass

Description:

Volcanic glass is a type of igneous rock that forms from the rapid cooling of volcanic lava or magma. It lacks a crystalline structure due to its quick solidification, resulting in a glassy appearance. This natural glass is commonly found in volcanic areas and can vary in color depending on its mineral composition.

Sample Sentences:

1. The shimmering black volcanic glass known as obsidian was used by ancient civilizations for making sharp tools and weapons.
2. During the volcanic eruption, molten lava transformed into volcanic glass upon contact with air.
3. Explorers stumbled upon a hidden trove of beautiful green volcanic glass, also called peridotite, within the volcanic crater.
4. The museum displayed an exquisite piece of tumbled volcanic glass, exhibiting its unique texture and iridescent sheen.

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