aphanitic
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aphanitic |
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| navigate by keyword : aphanitic argillaceous background black boulder carbon carbonate caused clay coal composition crystal distributed environment environmental felsic foliated forms fossil fuel gem gemmology gemology geological geology glassy grain hard igneous macro marble metamorphic metamorphism minerals natural nonfoliated object originally piece porphyritic pure rhyolite rocks rough sand science sedimentary shooting single solid specimen spinach structure tectonics type volcanic volcano |
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| Rhyolite is an igneous, volcanic rock, of felsic silica-rich composition It may have any texture from glassy to aphanitic to porphyritic. |
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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