... fine-grained, calcium-rich, magnesium, iron, aluminous amphibole. All jade is composed of fine-grained, highly intergrown, interlocking ("matted" ... green, translucent form is referred to as Imperial Jade or "gem jade". A small amount of Cr in jadeite accounts ... -based names for jadeite jade are Yunan Jade, for a uniquely appearing dark green, semitranslucent jade, Apple Jade for apple (yellowish green ...