福州砂巖壁畫制作用的泥砂(sha)巖(yan)還具(ju)(ju)有類似(si)塑料的塑變性(xing)(xing)(xing),更適合雕刻和切(qie)出10mm厚(hou)的薄板(ban),關于砂(sha)巖(yan)輕微的塑變性(xing)(xing)(xing),現普遍認為(wei)是SiO2之間(jian)分子聯結,卻又未形成結塊的緣故。砂(sha)巖(yan)的吸(xi)(xi)水率很(hen)大,一(yi)些品種(zhong)幾乎是將水倒上即滲入石材(cai)內,砂(sha)巖(yan)因其內部構造空隙(xi)率大的特性(xing)(xing)(xing),都(dou)有吸(xi)(xi)聲、吸(xi)(xi)潮、防(fang)火、亞光的特性(xing)(xing)(xing),這種(zhong)特性(xing)(xing)(xing)的品種(zhong)裝飾到具(ju)(ju)有吸(xi)(xi)聲要求的影劇院、體(ti)育館、飯店(dian)等公(gong)共場所(suo)效果十(shi)分理想,甚至可省(sheng)去吸(xi)(xi)聲板(ban)和拉(la)毛(mao)墻。