砂(sha)巖(yan)(yan)(yan)壁畫(hua)的(de)泥砂(sha)巖(yan)(yan)(yan)還(huan)具有(you)類似塑料的(de)塑變(bian)性(xing),更適合雕刻和切出10mm厚(hou)的(de)薄板,關于砂(sha)巖(yan)(yan)(yan)輕(qing)微的(de)塑變(bian)性(xing),現普(pu)遍(bian)認為(wei)是SiO2之間分子(zi)聯結,卻又(you)未形成結塊的(de)緣故。砂(sha)巖(yan)(yan)(yan)的(de)吸(xi)水率很大,一些品(pin)種(zhong)(zhong)幾乎是將水倒上即滲入石材(cai)內,砂(sha)巖(yan)(yan)(yan)因其內部構造空隙率大的(de)特性(xing),都(dou)有(you)吸(xi)聲、吸(xi)潮、防火、亞光的(de)特性(xing),這種(zhong)(zhong)特性(xing)的(de)品(pin)種(zhong)(zhong)裝飾到(dao)具有(you)吸(xi)聲要求(qiu)的(de)影劇院、體育(yu)館、飯店等公共場所效果(guo)十分理想,甚至(zhi)可省去(qu)吸(xi)聲板和拉毛墻(qiang)。