礦物 (Khòng-bu̍t)是 (sī)地質 (tē-chit)作用 (chok-iōng)造成 (chō-chiâⁿ)的 (ê)天然 (thian-jiân)化合物 (hoà-ha̍p-bu̍t)。礦物有 (ū)2層 (chân)意涵 (ì-hâm)，化學 (hoà-ha̍k)成份 (sêng-hūn) (chemical composition) 佮 (kap)結晶 (kiat-chiⁿ)結構 (kiat-kò͘) (crystal structure)。有機 (Iú-ki)化合物素常 (sò͘-siông)無 (bô)準 (chún)做 (chò)礦物。礦物的行 (hêng)有千百 (chheng-pah)款 (khoán)，有購 (ko͘)1種 (chióng)化學元素 (goân-sò͘)組成的 (cho͘-sêng--ê)，嘛 (mā)有親像 (chhan-chhiūⁿ)絲酸鹽 (Si-sng-iâm) (silicate) 遐 (hiah)複雜的 (ho̍k-cha̍p--ê)。對 (Tùi)礦物的齊捌 (chai-bat)號 (hō)做礦物學 (khòng-bu̍t-ha̍k) (mineralogy)。
