大(da)理石(shi)主要由(you)方解(jie)石(shi)、石(shi)灰(hui)石(shi)、蛇紋石(shi)和白云(yun)石(shi)組成。其主要成分以碳(tan)酸(suan)(suan)鈣為主，約(yue)占(zhan)50%以上。由(you)于(yu)(yu)大(da)理石(shi)一(yi)般(ban)都含有雜(za)質，而(er)且碳(tan)酸(suan)(suan)鈣在大(da)氣中受二(er)氧(yang)化碳(tan)、碳(tan)化物、水氣的作(zuo)用(yong)，大(da)理石(shi)供(gong)應，也容易風化和溶蝕，而(er)使表面(mian)很快(kuai)失去光澤。大(da)理石(shi)一(yi)般(ban)性質比較軟，這是相對于(yu)(yu)花崗(gang)石(shi)而(er)言的。在室內裝修(xiu)中，電視機臺面(mian)、窗臺、室內地面(mian)等適合使用(yong)大(da)理石(shi)。 大(da)理石(shi)是商品名稱(cheng)，并(bing)非巖石(shi)學定義。

商(shang)業(ye)(ye)用花崗(gang)巖(yan)(yan)(yan)(yan)(yan)(yan)包(bao)括(kuo)前述之(zhi)花崗(gang)巖(yan)(yan)(yan)(yan)(yan)(yan)、片(pian)麻巖(yan)(yan)(yan)(yan)(yan)(yan)，片(pian)麻花崗(gang)巖(yan)(yan)(yan)(yan)(yan)(yan)、花崗(gang)片(pian)巖(yan)(yan)(yan)(yan)(yan)(yan)及(ji)學者(zhe)(zhe)所稱(cheng)之(zhi)正長(chang)(chang)巖(yan)(yan)(yan)(yan)(yan)(yan)、花崗(gang)閃(shan)長(chang)(chang)巖(yan)(yan)(yan)(yan)(yan)(yan)的成分(fen)介于其(qi)間之(zhi)巖(yan)(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)。片(pian)麻巖(yan)(yan)(yan)(yan)(yan)(yan)類(lei)之(zhi)巖(yan)(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)包(bao)括(kuo)礦物成分(fen)、類(lei)似花崗(gang)巖(yan)(yan)(yan)(yan)(yan)(yan)及(ji)具粒狀結(jie)(jie)晶組(zu)織(zhi)者(zhe)(zhe)。商(shang)業(ye)(ye)用花崗(gang)巖(yan)(yan)(yan)(yan)(yan)(yan)亦包(bao)括(kuo)其(qi)它類(lei)似之(zhi)組(zu)織(zhi)、含(han)少量副成分(fen)礦物之(zhi)長(chang)(chang)石(shi)(shi)(shi)質結(jie)(jie)晶巖(yan)(yan)(yan)(yan)(yan)(yan)，常熟大(da)理石(shi)(shi)(shi)，主要為裝(zhuang)飾用者(zhe)(zhe)，如巖(yan)(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)學者(zhe)(zhe)所稱(cheng)之(zhi)鈣斜(xie)長(chang)(chang)石(shi)(shi)(shi)。片(pian)麻巖(yan)(yan)(yan)(yan)(yan)(yan)為具粗理之(zhi)結(jie)(jie)晶質巖(yan)(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)，主要由硅酸鹽類(lei)礦物組(zu)成，大(da)理石(shi)(shi)(shi)樓梯，呈鑲嵌狀及(ji)粒狀結(jie)(jie)晶組(zu)織(zhi)，不同類(lei)之(zhi)礦物以(yi)規則或不規則，交互排(pai)列而造成。

2.人造(zao)文(wen)(wen)化石(shi)：人造(zao)文(wen)(wen)化石(shi)是(shi)(shi)采用(yong)硅鈣、石(shi)膏等材料精制(zhi)而成的(de)(de)(de)(de)。它(ta)模仿天然(ran)(ran)石(shi)材的(de)(de)(de)(de)外形紋理，具(ju)有(you)質(zhi)地輕、色彩豐富、不霉(mei)、不燃、便于(yu)安裝等特(te)點。文(wen)(wen)化石(shi)本身并(bing)不具(ju)有(you)特(te)定(ding)的(de)(de)(de)(de)文(wen)(wen)化內涵(han)。但是(shi)(shi)文(wen)(wen)化石(shi)具(ju)有(you)粗礪的(de)(de)(de)(de)質(zhi)感(gan)、自然(ran)(ran)的(de)(de)(de)(de)形態，可以(yi)說，文(wen)(wen)化石(shi)是(shi)(shi)人們回歸自然(ran)(ran)、返(fan)樸歸真(zhen)的(de)(de)(de)(de)心態在室(shi)內裝飾中(zhong)的(de)(de)(de)(de)一種(zhong)體現。這種(zhong)心態，我們也可以(yi)理解為是(shi)(shi)一種(zhong)生活文(wen)(wen)化。