砂(sha)(sha)巖(yan)壁畫的泥(ni)砂(sha)(sha)巖(yan)還具(ju)有(you)類似塑料的塑變性,更(geng)適(shi)合雕刻和切出10mm厚的薄板,關于(yu)砂(sha)(sha)巖(yan)輕(qing)微的塑變性,現普遍認為是SiO2之間分(fen)(fen)子聯結(jie),卻又未形(xing)成結(jie)塊的緣故。砂(sha)(sha)巖(yan)的吸(xi)(xi)水率很大,一些品(pin)種(zhong)幾乎是將(jiang)水倒上(shang)即滲入石(shi)材(cai)內,砂(sha)(sha)巖(yan)因其內部構造空(kong)隙率大的特性,都有(you)吸(xi)(xi)聲、吸(xi)(xi)潮、防火、亞光(guang)的特性,這種(zhong)特性的品(pin)種(zhong)裝飾(shi)到(dao)具(ju)有(you)吸(xi)(xi)聲要(yao)求的影劇院、體育(yu)館(guan)、飯(fan)店等公(gong)共(gong)場所效果十分(fen)(fen)理想(xiang),甚至(zhi)可省(sheng)去(qu)吸(xi)(xi)聲板和拉毛墻。