產(chan)自新疆帕(pa)米(mi)爾高(gao)原深處(chu)(chu),質地細膩,顯變晶結構(gou),層紋構(gou)造或(huo)塊狀構(gou)造,呈(cheng)半透(tou)明(ming)乳白(bai)(bai)(bai)色(se)或(huo)米(mi)白(bai)(bai)(bai)色(se),有較(jiao)強(qiang)的石英(ying)(ying)(ying)結晶光(guang)(guang)澤,石英(ying)(ying)(ying)巖為白(bai)(bai)(bai)色(se),含其它(ta)礦(kuang)物時,依(yi)所含礦(kuang)物的種(zhong)(zhong)類、多少、可呈(cheng)現(xian)綠、翠綠、藍綠、藍紫(zi)、淡紫(zi)等顏色(se)。硬度(du)高(gao),小刀(dao)劃不動,質感透(tou),通(tong)光(guang)(guang)性好,表面為玻(bo)璃狀光(guang)(guang)澤,和田(tian)玉(yu)為油脂狀或(huo)壓油脂狀、半玻(bo)璃狀光(guang)(guang)澤。在原料邊緣局(ju)部或(huo)成品加工處(chu)(chu),強(qiang)光(guang)(guang)下能(neng)見到細小的石英(ying)(ying)(ying)狀耀斑(ban),晶白(bai)(bai)(bai)玉(yu)的成分則是白(bai)(bai)(bai)色(se)石英(ying)(ying)(ying)巖,是一種(zhong)(zhong)中低檔的材(cai)料,雖然還(huan)是被認為是玉(yu)石材(cai)料,所謂“晶白(bai)(bai)(bai)玉(yu)”只(zhi)是一種(zhong)(zhong)被美(mei)化的稱呼而已。