melaphyre

n. [地]暗玢岩

词形变化

melaphyres 复数 melaphyres

释义与例句

n.
  1. 1.

    Various dark-coloured volcanic igneous rocks rich in augite, similar to and in some definitions including basalt, principally of Paleozoic age

    可数 废旧 不可数

词源

French, from Ancient Greek, meaning "black porphyry".

来源：wiktionary