porphyritic rock

ریشه

From Greek 'porphura' (purple dye) + '-itic' (suffix indicating a characteristic or quality) + 'rock'.

مثال

• Granite and andesite are common types of porphyritic rock.
• The porphyritic texture of the rock is caused by the slow cooling of magma.
• Porphyritic rocks are often used as decorative stones.