“黑胆石”的初步研究  

A Preliminary Study on "Heidan" Stone

作　　者：罗跃平[1] 段体玉[1] 王春生[1] 

机构地区：[1]国家首饰质量监督检验中心,北京100101

出　　处：《宝石和宝石学杂志》2008年第4期31-33,I0001,共4页Journal of Gems & Gemmology

摘　　要：在北京的一些珠宝市场出现了一种被称为"黑胆石"的饰品,呈黑色,具有强磁性,商家或称其为"赤铁矿",或称为"乌刚石"。为了得到这种材料的确切名称,采用常规宝石学测试和一些大型仪器对其进行了初步研究。结果表明,这种"黑胆石"样品的主要成分为Fe和Sr,其化学成分为SrO.6Fe2O3,因此推测,这种"黑胆石"样品为一种人造磁性材料铁酸锶,而不是市场上人们所说的赤铁矿或乌钢石。A kind of so-called ＂Heidan＂ stone is appeared in Beijing jewelry markets. It is black and has strong magnetism, which is called ＂hematite＂ or ＂goethite＂ by traders. The stone samples are preliminarily studied by using the conventional gemmological tests and ad- vanced equipments in order to get the correct name. The results show that the samples are mainly composed of Fe and Sr, and the chemical composition is SrO · 6Fe2O3. So the stone is inferred an artificial magnetic material-- strontium ferrite, but not hematite or goethite.

关 键 词：黑胆石 磁性材料 赤铁矿 乌钢石 人造铁酸锶 

分 类 号：TS93[轻工技术与工程]