porphyroid.
/pawr-fuh-roid/US // ˈpɔr fəˌrɔɪd //UK // (ˈpɔːfɪˌrɔɪd) //
卟啉症,卟啉类,卟啉族,卟啉
Definitions
n.noun · 名词
- 1.
- ›a rock resembling porphyry.
- ›a sedimentary rock that has been metamorphosed so as to leave some original crystals in a fine-textured, layered matrix.
Examples
Pumice and trachyte are the most common rocks around this mountain, and these are augitic or porphyroid.
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