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Igneous is from the Latin for 'from fire'. The same root as for ignite.

Igneous rocks are classed in two types, volcanic which erupt on the surface and then crystallize, and plutonic, such as granite, which crystallize under the surface.

For each volcanic rock there is a corresponding plutonic, as judged by their chemistry.

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14y ago
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5mo ago

Igneous refers to rocks that have formed from the cooling and solidification of molten rock material, such as magma or lava. These rocks typically have a crystalline texture due to their formation process. Examples of igneous rocks include basalt, granite, and obsidian.

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Q: What does lgneous mean?
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