云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)物理(li)性(xing)(xing)能(neng)(neng)主要取決于(yu)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)晶體的(de)(de)大小(xiao)，由解(jie)理(li)和硬度(du)決定的(de)(de)剝分(fen)性(xing)(xing)以(yi)及云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)顏色透明度(du)和彈性(xing)(xing)等(deng)。 工(gong)(gong)業云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)多呈疊板(ban)狀(zhuang)或(huo)書冊(ce)狀(zhuang)晶形，晶體大小(xiao)不等(deng)，厚(hou)度(du)從幾毫米(mi)到(dao)(dao)幾十厘米(mi)，一般只要晶體面積大于(yu)或(huo)等(deng)于(yu)4cm2，就具有直(zhi)接利用(yong)價值。當然晶體面積越(yue)大，價值越(yue)高(gao)。云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)剝分(fen)性(xing)(xing)能(neng)(neng)由云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)解(jie)理(li)和硬度(du)所決定。云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)獨(du)特的(de)(de)晶體結構，使(shi)其具有一組極(ji)完全的(de)(de)底面解(jie)理(li)，這成為(wei)(wei)工(gong)(gong)業云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)技術加工(gong)(gong)剝分(fen)的(de)(de)重要性(xing)(xing)能(neng)(neng)。理(li)論(lun)上白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)能(neng)(neng)剝分(fen)到(dao)(dao)10 左(zuo)右，金云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)可剝分(fen)到(dao)(dao)5—10 左(zuo)右，因此，白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)和金云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)可按工(gong)(gong)業要求，剝分(fen)任意厚(hou)度(du)的(de)(de)平整薄片，以(yi)滿足電(dian)器、電(dian)子工(gong)(gong)業對云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)要求。云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)硬度(du)均較低，白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)為(wei)(wei)2—2.5，鎂硅(gui)白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)為(wei)(wei)2.37，金云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)為(wei)(wei)2.78—2.85。云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)硬度(du)越(yue)大，越(yue)難(nan)剝分(fen)。白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)、鎂硅(gui)白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)剝分(fen)性(xing)(xing)能(neng)(neng)較好(hao)，金云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)略差。云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)顏色特征常(chang)用(yong)來表征云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)絕(jue)緣(yuan)性(xing)(xing)能(neng)(neng)，工(gong)(gong)業云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)一般以(yi)淺色白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)為(wei)(wei)好(hao)，金云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)次之，黑云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)絕(jue)緣(yuan)性(xing)(xing)能(neng)(neng)差。白(bai)(bai)(bai)(bai)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)的(de)(de)彈性(xing)(xing)系數(shu)為(wei)(wei)15346—21760bar，金云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)為(wei)(wei)14500—19480bar，工(gong)(gong)業上利用(yong)云(yun)(yun)(yun)(yun)(yun)母(mu)(mu)(mu)(mu)(mu)作絕(jue)緣(yuan)材料時(shi)，對其彈性(xing)(xing)有嚴格的(de)(de)要求。