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  2. Is basalt rock intrusive or extrusive? - Answers

    www.answers.com/earth-science/Is_basalt_rock_intrusive_or_extrusive

    Basalt is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon. Basalt rock is extrusive, meaning it ...

  3. Is coal an extrusive or an intrusive? - Answers

    www.answers.com/earth-science/Is_coal_an_extrusive_or_an_intrusive

    AnswerBot. ∙ 4mo ago. Coal is neither extrusive nor intrusive. It is a sedimentary rock that forms from the remains of plants that have been compacted and heated over millions of years. Coal is ...

  4. Is lava intrusive or extrusive - Answers

    www.answers.com/earth-science/Is_lava_intrusive_or_extrusive

    AnswerBot. ∙. Lava is extrusive, meaning it forms on the Earth's surface as a result of volcanic activity. It cools rapidly and solidifies quickly into volcanic rock, such as basalt or obsidian ...

  5. Is obsidian intrusive or extrusive - Answers

    www.answers.com/earth-science/Is_obsidian_intrusive_or_extrusive

    Extrusive magmas, on the other hand, cool quickly on the Earth's surface, leading to fine-grained or glassy textures like obsidian or basalt. Are crystals intrusive or extrusive? extrusive

  6. Is graphite rock extrusive or intrusive? - Answers

    www.answers.com/earth-science/Is_graphite_rock_extrusive_or_intrusive

    Graphite is neither extrusive nor intrusive rock. It is a mineral composed of pure carbon and forms under high temperature and pressure in the Earth's crust. Yes. It has been metamorphosed or ...

  7. Which of the six major kinds of rock are intrusive and which are...

    www.answers.com/earth-science/Which_of_the_six_major_kinds_of_rock_are...

    Intrusive rocks are formed beneath the Earth's surface and include granite, diorite, and gabbro. Extrusive rocks, on the other hand, are formed on the Earth's surface and include basalt, andesite ...

  8. Which intrusive and extrusive rocks have the same chemical ... -...

    www.answers.com/earth-science/Which_intrusive_and_extrusive_rocks_have_the...

    AnswerBot. ∙ 3mo ago. Basalt is an extrusive rock and gabbro is an intrusive rock that have the same chemical composition. Both are composed mainly of dark-colored minerals like pyroxene and ...

  9. Is Slate extrusive or intrusive - Answers

    www.answers.com/earth-science/Is_Slate_extrusive_or_intrusive

    Extrusive and intrusive are terms used to describe igneous rocks formed at ground level or underground. Slate is a metamorphic rock that is formed from the low-grade metamorphism of shale or ...

  10. Are mafic rocks solely intrusive or extrusive? - Answers

    www.answers.com/earth-science/Are_mafic_rocks_solely_intrusive_or_extrusive

    Extrusive mafic rocks, like basalt, are formed on the Earth's surface through rapid cooling of lava. No. The terms felsic and mafic refers to the relative content of certain minerals in the magma ...

  11. Is diorite intrusive or extrusive - Answers

    www.answers.com/earth-science/Is_diorite_intrusive_or_extrusive

    Basalt is an extrusive rock and gabbro is an intrusive rock that have the same chemical composition. Both are composed mainly of dark-colored minerals like pyroxene and plagioclase feldspar.