Rhyolite
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| Did you know | The silica content of rhyolite is usually between 60% to 77%. |
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| ID | 1354238 |
About Rhyolite
Rhyolite is an igneous, volcanic rock, of felsic composition. It may have any texture from glassy to aphanitic to porphyritic. The mineral assemblage is usually quartz, sanidine and plagioclase. Biotite and hornblende are common accessory minerals. It is the extrusive equivalent to granite.
Rhyolite Photos
