pyroxene; augite
A group of rock-forming silicate minerals. Augite is a common member. Used in geology and mineralogy.
Pyroxene is a mineral commonly found in igneous rocks.
この標本には普通輝石が多く見られる。
This specimen contains a lot of augite.
kanoite
augite
hedenbergite
From 輝 (ki, 'shine') + 石 (seki, 'stone'), referring to the shiny appearance of cleavage surfaces. The exact historical derivation is uncertain; the spelling is conventionally associated with the mineral's luster.