砂(sha)(sha)(sha)巖(yan)(yan)壁(bi)畫的(de)(de)泥砂(sha)(sha)(sha)巖(yan)(yan)還(huan)具有(you)類(lei)似塑料的(de)(de)塑變性(xing),更適合雕(diao)刻和切出10mm厚的(de)(de)薄板(ban),關于砂(sha)(sha)(sha)巖(yan)(yan)輕(qing)微的(de)(de)塑變性(xing),現(xian)普(pu)遍認為是(shi)SiO2之(zhi)間分子聯結,卻又未(wei)形成結塊的(de)(de)緣(yuan)故。砂(sha)(sha)(sha)巖(yan)(yan)的(de)(de)吸(xi)水率很(hen)大,一(yi)些品(pin)種(zhong)(zhong)幾乎是(shi)將(jiang)水倒上即滲入石(shi)材(cai)內,砂(sha)(sha)(sha)巖(yan)(yan)因其內部構造空(kong)隙率大的(de)(de)特(te)性(xing),都有(you)吸(xi)聲(sheng)、吸(xi)潮、防(fang)火、亞光的(de)(de)特(te)性(xing),這種(zhong)(zhong)特(te)性(xing)的(de)(de)品(pin)種(zhong)(zhong)裝(zhuang)飾到具有(you)吸(xi)聲(sheng)要求的(de)(de)影(ying)劇院、體育館、飯店等(deng)公(gong)共場所效果十分理(li)想(xiang),甚至可省去吸(xi)聲(sheng)板(ban)和拉毛墻。