por·phy·ry
noun/ˈpɔːfəri/
/ˈpɔːrfəri/
[uncountable]- a type of hard red stone that contains red and white crystals, which can be polished (= made smooth and shiny by rubbing) and made into statues, jewellery, etc.
斑岩（porphyry）：一种包含红色和白色晶体的坚硬红色石头，可以抛光（通过摩擦使其光滑有光泽）并制成雕像，珠宝等。 Word Originlate Middle English: via medieval Latin from Greek porphuritēs, from porphura ‘purple’.