volcanic rock crossword clue – All Crossword Answers

Welcome to Crosswordanswer.co.uk! Below, you'll find comprehensive solutions for the crossword clue "volcanic rock crossword clue", categorized by letter count, along with detailed explanations to help you understand the answers better.

Solutions for "volcanic rock crossword clue" by Letter Count

4 Letters

TUFF: A type of rock made of volcanic ash ejected from a vent during a volcanic eruption, often compacted and hardened.

LAVA: Molten rock that flows from a volcano onto Earth's surface. While molten, it solidifies into various forms of volcanic rock.

6 Letters

BASALT: A common extrusive igneous rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon.

PUMICE: A very light and porous volcanic rock formed when a gas-rich froth of glassy lava solidifies rapidly, often used as an abrasive.

SCORIA: A dark, vesicular volcanic rock, similar to pumice but typically darker and denser, often reddish-brown or black.

8 Letters

OBSIDIAN: A naturally occurring volcanic glass formed as an extrusive igneous rock, characterized by its sharp edges and glossy appearance.

More About "volcanic rock crossword clue"

Volcanic rocks, also known as extrusive igneous rocks, are formed from molten magma that flows out of a volcano onto the Earth's surface (lava) and then rapidly cools and solidifies. The rapid cooling prevents the formation of large crystals, often resulting in fine-grained or glassy textures.

These rocks are vital in understanding Earth's geological processes, including plate tectonics and the history of volcanic activity. Their composition can vary widely depending on the original magma and the conditions under which they cooled, leading to diverse types like the dense basalt that forms ocean floors, or the lightweight pumice found near explosive eruption sites.

Solving crossword clues related to geology often requires a good understanding of scientific terms. "Volcanic rock" is a prime example of a clue that can have multiple correct answers, depending on the specific rock type hinted at or the required letter count in the puzzle.

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Frequently Asked Questions

What are common types of volcanic rock?

Common types of volcanic rock include basalt, obsidian, pumice, and tuff. These rocks are formed when molten lava cools and solidifies, either above or below the Earth's surface.

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