具砂金效应的钾长石  

Aventurine K-feldspar

作　　者：Gagan Choudhary 黄艺兰 

机构地区：[1]宝石检测实验室 [2]本编辑部

出　　处：《宝石和宝石学杂志》2008年第3期20-22,I0001,共4页Journal of Gems & Gemmology

摘　　要：最近,印度斋浦尔宝石检测实验室检测了3颗具砂金效应的长石样品,经过初步证实其可能属于钾长石而不是奥长石(日光石)。由于该样品具有明显砂金效应的外观特征,使其看起来就像是日光石。但相关的测试结果显示,该样品的物理、光学及化学性质不符合日光石的,而与钾长石的较相符,其属于正长石。Recently, the Gem Testing Laboratory of Jaipur from India has encountered three aventurine feldspar samples which have been primarily proved belonging to the potassium feldspar rather than the oligoclase（sunstone）. The samples studied here appear to be sun- stones as they readily display aventurescence. However, the physical, optical and chemical properties of the samples do not match to that of sunstone but to that of potassium feldspar. The overall features of the samples are consistent to those of orthoclase feldspar.

关 键 词：钾长石 砂金效应 奥长石(日光石) 

分 类 号：TS93[轻工技术与工程]