珍珠（Pearl）

英文名：Pearl
硬度 3.5-4.5 比重 2.60-2.78
珍珠光泽
peidai：yimosun，bimiansuanxingwuzhi

       「珍珠」（Pearl）shirenleishiyonglishizuiyoujiudeyoujibaoshi（organic gem），chanchuyuruantidongwutinei，rumuli、hebangdengshuangqiaogang（bivalvia）dongwu。

       「zhenzhu」juyouyizhongteshude「zhenzhuguangze」，zheizhongguangzeshiyouzhenzhuzhicengdepianzhuangjingtibianyuanfashengyanshexingchengde，zhenzhudeyanseyoubaise、fenhong、huangse、huise、zise、heisedeng。

       zai1900nianqian，jihusuoyoude「zhenzhu」doushitianranzhenzhu（natural pearl）。1905nian，ribenrenyumubenxingji（kokichi mikimoto）chenggongguimohuapeiyu「zhenzhu」，muqianshijiejuedaduoshujiaoyidezhenzhudoushi「rengongyangzhizhenzhu」（cultured pearl）。

       「珍珠」是一种六月诞生石。

       人类认识「珍珠」的历史

       zaishangweiyouwenzihejiludeshiqianshidai，renleijiuyijingzaihaibianxunzhaoshiwushifaxianlemulizhongde「zhenzhu」。zheizhongbaoshibuxuyaorenhedamohuoqiege，jiuchengxianchumeilideguangze，yincizaihenduogulaowenmingzhongdoushoudaozhenshihezanmei。

       guaijirenjiang「zhenzhu」shiweizhongyaodepeizangbaoshi；guluomarenrenwei「zhenzhu」shidaibiaocaifuheshehuidiweidezhongjixiangzheng；xilarenjiang「zhenzhu」heaiqingyuhunyinlianxizaiyiqi。zaizhongshiji，meiyimingouzhouguizuxiaojiedouxiangyaoyouyitiaozhenzhuxianglian，qishiyejingchangpeidaizhenzhushangzhanchangyiqiuhaoyun。

       zaiouzhouxiangxinshijiezhiminshiqi，ouzhourenzaizhongmeizhouhaiyufaxianlezhenzhu，bingchengweizhongyaodecaifulaiyuan。youkaicaiguodu，daozhijihusuoyoudemeiguozhenzhubeizhongqunzai17shijikujie。

       zai1900niandaiyiqian，zhenzhujinshishangliushehuisuoyongyoudebaoshi。1916nian，faguozhubaoshang jacques cartier yongleliangtiaozhenzhuxianglianhuande cartier zainiuyuediwudadaodedianpu，zheiliangtiaoxianglianfenbieyou55kehe73ketianranzhenzhu，dangshidejiazhiwei100wanmeiyuan。

       「珍珠」的形成

       zuizhongyaodechanzhenzhuruantidongwuwei「haishuimuli」（oysters）he「danshuihebang」（mussels），dangyiwujinruzheiliangzhongruantidongwudetineishi，tamentedingdeshangpixibaohuifenmitansuangaiyuzhenzhuzhijiangwailaiwubaoguoqilai，「zhenzhuceng」you「tansuangai」（caco3）heshaoliangyoujizhi（danbaizhi）zucheng，「tansuangai」yixiefangjingxichengdiefupianzhuangdewenshijingtizucheng。