砂(sha)(sha)巖(yan)(yan)(yan)壁畫的(de)泥砂(sha)(sha)巖(yan)(yan)(yan)還(huan)具有(you)類似塑料的(de)塑變(bian)性(xing)(xing),更適合雕刻和切出(chu)10mm厚的(de)薄(bo)板(ban),關于砂(sha)(sha)巖(yan)(yan)(yan)輕微的(de)塑變(bian)性(xing)(xing),現普遍認為是SiO2之間(jian)分(fen)子(zi)聯結,卻又未形成結塊的(de)緣故(gu)。砂(sha)(sha)巖(yan)(yan)(yan)的(de)吸(xi)(xi)水率很大,一些(xie)品種幾(ji)乎是將水倒上即滲入(ru)石材內,砂(sha)(sha)巖(yan)(yan)(yan)因(yin)其內部構(gou)造空隙率大的(de)特性(xing)(xing),都有(you)吸(xi)(xi)聲、吸(xi)(xi)潮(chao)、防火、亞光的(de)特性(xing)(xing),這種特性(xing)(xing)的(de)品種裝飾到(dao)具有(you)吸(xi)(xi)聲要求的(de)影劇院、體育館、飯店(dian)等(deng)公共(gong)場所效果十分(fen)理(li)想,甚至(zhi)可(ke)省去吸(xi)(xi)聲板(ban)和拉毛(mao)墻。