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Any rock that erupted on (lava) or within the Earth or crystallized from molten rock (magma). Such rock would fall into two categories: Intrusive (crystallized within the Earth), granite, gabbro, diorite, pegmatite, peridotite and extrusive (erupted and crystallized on the surface) rhyolite, andesite, obsidian, basalt, tuff and pumice.

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8y ago
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15y ago

A hardened lava rock would be this example mostly, any solid coming from lava or magma is igneous. Some are basalt, granite, and gabbro.

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12y ago

Granite, scoria, Pumice, and obsidian

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Q: What is 1 example of an igneous rock?
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