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Hornblende andesite porphyryHornblende andesite porphyry is an intermediate volcanic igneous rock. Like most porphyrys, it cooled at two separate rates, causing two sizes of crystals to be visible. Product highlightSource: [1] |
| This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Hornblende_andesite_porphyry". A list of authors is available in Wikipedia. |
