摘要
通过对市场上常见翡翠的矿物组成、岩石类型的研究可知,翡翠是由钠铝质辉石(硬玉、绿辉石、钠铬辉石)和少量钠长石、钠质闪石组成的一种矿物集合体,其岩石类型主要为钠铝质辉石岩。根据钠铝质辉石岩中端员组分的量比关系,翡翠又可划分为:纯硬玉岩、纯绿辉石岩、纯钠铬辉石岩及它们之间过渡类型岩石。在此研究基础上,将翡翠定义为"具有宝石学价值的钠铝质辉石岩"。
On the basis of the study of mineral composition and jadeite rock types, we can know that the jadeite is a kind of mineral aggregate, which consists of sodium aluminum pyroxenes,albites and sodium amphiboles. Is main rock type is the sodium aluminum pyroxenite. According to the content of minerals in sodium aluminum pyroxenites, jadeites can be classified as follow: jadeite rocks, omphacite rocks, kosmochlor rocks and their transitional type rocks. On the basis of the research, the author proposes the jadeite's definition:' the sodium aluminum pyroxenite with gemology value'.
关键词
翡翠
矿物组成
岩石类型
钠铝质辉石
钠长石
jadeite
definition
sodium aluminum pyroxenites
mineral composition rock type
