crossword clue volcanic rock – All Crossword Answers
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Solutions for "crossword clue volcanic rock" by Letter Count
4 Letters
LAVA: Molten rock extruded from a volcano onto the Earth's surface. While technically molten, it solidifies into volcanic rock and is often accepted in crosswords as a direct association.
TUFF: A light, porous rock formed by the consolidation of volcanic ash and dust, commonly found near volcanic regions.
6 Letters
BASALT: A common dark, fine-grained volcanic rock, typically forming from the rapid cooling of lava. It makes up much of the Earth's oceanic crust.
PUMICE: A very light and porous volcanic rock formed when superheated, highly pressurized rock is violently ejected from a volcano. It often has a frothy appearance and can float on water.
8 Letters
OBSIDIAN: A naturally occurring volcanic glass formed as an extrusive igneous rock. It is typically black or dark in color and breaks with a very sharp conchoidal fracture.
More About "crossword clue volcanic rock"
Volcanic rock, also known as extrusive igneous rock, is formed from the rapid cooling of lava on the Earth's surface or beneath water. Unlike intrusive igneous rocks that cool slowly underground, volcanic rocks have a fine-grained or even glassy texture due to their quick solidification. Their composition and appearance vary widely depending on the original magma and the conditions of eruption.
These rocks are fundamental to understanding Earth's geology, providing clues about past volcanic activity and plate tectonics. Common examples include basalt, which forms much of the ocean floor, and more exotic types like obsidian, a natural glass, and pumice, a lightweight, porous rock known for its ability to float.
In crosswords, "volcanic rock" can be a versatile clue. Beyond the direct answers, context clues might point to specific types or properties, such as density (pumice) or color (basalt, obsidian). Always consider the letter count and any intersecting letters to narrow down the possibilities efficiently.
Tips For Your Next Puzzle
- Analyze the Word Length: The number of letters is often the most crucial hint. Start by filtering answers by length.
- Consider Common Crossword Synonyms: Some terms, like "lava" for "volcanic rock," are common crossword shortcuts. Think about closely related words or processes.
- Look for Intersecting Letters: If you have letters from intersecting clues, use them to eliminate incorrect answers or confirm correct ones.
- Think Broadly & Specifically: Some clues might want a general term (like "rock"), while others might be very specific (like "obsidian").
- Use a Crossword Dictionary: Don't be afraid to consult resources when you're truly stuck. Websites like Answercrossword.com are designed to help!
For more advice, visit our page on general crossword strategies.
Frequently Asked Questions
What's the difference between lava and volcanic rock?
Lava refers to the molten rock that flows from a volcano. Volcanic rock is the solid material that forms when lava cools and solidifies, either on the Earth's surface or just beneath it. So, lava is the liquid state, and volcanic rock is the solid state derived from it.
Why do crosswords sometimes use "lava" for "volcanic rock"?
Crossword clues often use related terms or common associations. While 'lava' is technically molten, it's the direct precursor to volcanic rock and is strongly associated with volcanic activity. It's a common bit of crossword setter's trickery or simplification, relying on the close relationship between the two.
Are all igneous rocks volcanic rocks?
No, not all igneous rocks are volcanic. Igneous rocks are formed from the cooling and solidification of molten rock (magma or lava). Volcanic rocks (also known as extrusive igneous rocks) form when lava cools on the Earth's surface. Intrusive igneous rocks, like granite, form when magma cools slowly beneath the Earth's surface.