omphacite

Omphacite jade or omphacitic jadeite jade, commercially named Inky Black Jade, is a virtually monomineralic rock composed of more than 90% omphacite.

辉石玉或辉石质翡翠是由90%以辉石组成为一种单一矿物玉石,其颜为墨,明度高,商业俗称墨翠。