一：絹云母的礦物特性
絹云母屬云母類礦物，是一種片狀細粒白云母。結(jié)構(gòu)呈二八面體，即由兩層硅氧四面體和一層鋁氧八面體構(gòu)成，四面體的頂氧（活性氧）與附加陰離子（OHˉ）位于兩層六面網(wǎng)的中央，構(gòu)成活性結(jié)晶水基團（見圖1）。{001}解理完全，可劈成極薄的片狀，徑厚比大、富彈性、耐高溫（600℃以上）、耐化學(xué)品腐蝕性強，對紫外線具有極佳的屏蔽作用，外表呈絲絹光澤，手感細膩潤滑。[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] 下一頁 |
