砂(sha)(sha)巖(yan)(yan)(yan)壁畫的泥砂(sha)(sha)巖(yan)(yan)(yan)還具(ju)有(you)類似塑料的塑變性(xing),更適合(he)雕刻和切出10mm厚的薄板,關于砂(sha)(sha)巖(yan)(yan)(yan)輕微(wei)的塑變性(xing),現普遍認為是SiO2之間分子聯結(jie),卻又(you)未形成(cheng)結(jie)塊的緣(yuan)故(gu)。砂(sha)(sha)巖(yan)(yan)(yan)的吸水率很大,一些品種幾乎是將水倒上(shang)即滲入石材內,砂(sha)(sha)巖(yan)(yan)(yan)因其內部構造空隙率大的特性(xing),都有(you)吸聲(sheng)、吸潮、防火、亞光的特性(xing),這種特性(xing)的品種裝飾到具(ju)有(you)吸聲(sheng)要(yao)求的影(ying)劇院、體育(yu)館、飯店(dian)等公共場(chang)所效果十(shi)分理想(xiang),甚至可省去(qu)吸聲(sheng)板和拉毛墻(qiang)。