| 1. | In metamorphic rocks, crystals similar to phenocrysts are called porphyroblasts.
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| 2. | Inside Calabozos, the ash resisted welding and contains more phenocrysts.
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| 3. | Phenocrysts in the postglacial rocks are biotite, plagioclase and quartz.
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| 4. | It is black with phenocrysts of plagioclase in a medium grained lamination.
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| 5. | Very large phenocrysts are termed " megaphenocrysts ".
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| 6. | The plagioclase phenocrysts occasionally reach a grain-size of 10 millimeters.
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| 7. | The rhyodacite is characterized by phenocrysts of plagioclase, quartz and biotite.
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| 8. | Dacites have biotite, hornblende, plagioclase and quartz phenocrysts.
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| 9. | Phenocrysts in the rocks contain clinopyroxene, olivine, orthopyroxene and phlogopite.
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| 10. | Basanites contain more olivine and less plagioclase / pyroxene phenocrysts.
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