玛瑙的形成与产地

　　tianranmanaoyuanshi——muziqingyoujizaishuoyouyumanaodeyuanshiwaixinghemanaoxiangsi，yincichengtawei“mahuangchansimanao——shengzheguandingtunao”。bulunzaijiuyueshengjinghuofojiaodejingdian，douyoumanaodeshijijizai。zaidongfang，tashiqibao、qizhenzhiyi。

　　manaokefenweiyusuihemanao。yuanshiyansebufuzadechengwei“yusui”，chuxianzhixianpingxingtiaowendeyuanshizechengwei“tiaowenmanao”(jiezimanao)。genjuyuanshideyanse，youyouchansimanao、shenhongmanaodengchenghu。

　　manao[delishishifenyaoyuan，dayuezaiyiyinianyiqian,dixiayanjiangyouyudiqiaodebiandongerdaliangpenchu,rongyanlengqueshi,zhengqiheqitaqitixingchengqipao。qipaozaiyanshidongjieshibeifengqilaierxingchengxuduodongkong。henjiuyihou，dongkongjinruhanyoueryanghuaguiderongyeningjiewucaimanaoyuanshi——zhuomuniaochengguijiao。hantieyanshidekerongchengfenjinruguijiao，zuihoueryanghuaguijiejingweimanao。zaikuangwuxuezhong，tashuyuyusuilei，shijuyoubutongyanseqiechenghuandaizhuangfenbudeshisui。tongchangshiwucaishuicaomanaodiaojian——xiaolongyoueryanghuaguidejiaotiyanyanshidekongdonghuokongxidezhoubixiangzhongxinzhujianchongtian、xingchengtongxincengzhuanghuopingxingcengzhuangkuaiti。yibanweibantoumingdaobutouming，yingdu6.5zhi7du，bizhong2.55zhi2.91，zheguanglv1.535zhi1.539。

　　zaidizhilishidegegedicengzhong，wulunshihuochengyanhaishichenjiyandounengxingchengmanao。suoyi，manaohenduo，chengsechayiyehenda。anqihuawenheyansedebutong，eryougaozhuangmanao、taiwenmanao、biyumanaodengmingcheng。

　　manaoyiqisecaifengfu、meiliduozierbeidangzuobaoshihuozuogongyizhipin，yekeyiyonglaizhizuojingmiyiqidezhouchengjimanaoyanti、manaorubaimanaoyuanshi——yangguifeibodenggongyeyongpin。

　　shijieshangmanaozhumingchandiyou：yindu、baxi、meiguo、aimanaoyuanshi——yutuji、aodaliya、moxigedengguo。moxige、meiguohenamibiyahaichanyouhuabianzhuangwendaidemanao，chengwei“huabianmanao”。meiguohuangshigongyuan、huaiemingzhoujimengdanazhouhaichanyou“fengjingmanao”。woguomanaochandifenbuyehenguangfan，jihugeshengdouyou，zhumingchandiyou：yunnan、heilongjiang、liaoning、hebei、xinjiang、ningxia、neimenggudeng。