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Citrus2011 [14]
3 years ago
13

What features did you use to classify igneous rocks as extrusive or intrusive ?

Chemistry
2 answers:
umka21 [38]3 years ago
6 0

Answer: Igneous rocks may be simply classified according to their chemical/mineral composition as felsic, intermediate, mafic, and ultramafic, and by texture or grain size: intrusive rocks are course grained (all crystals are visible to the naked eye) while extrusive rocks may be fine-grained (microscopic crystals) or glass.

Explanation: Hope this helped! :)

Sati [7]3 years ago
6 0

Answer:

Igneous rocks may be simply classified according to their chemical/mineral composition as felsic, intermediate, mafic, and ultramafic, and by texture or grain size: intrusive rocks are course grained (all crystals are visible to the naked eye) while extrusive rocks may be fine-grained (microscopic crystals) or glass ( ...

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Igneous rocks formed on or near Earth’s surface are considered
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