礦物
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From Wikipedia, the free encyclopedia
礦物係地出之物,通常係固態化學物質,有特定化學成份,有一定嘅原子結構同物理特性。石頭(火成岩同變質岩)通常係礦物混雜,而礦物就單一啲。礦物可以係天然元素,或者鹽類,或者複雜嘅晶體結構。靚而罕有嘅礦物就會成為寶石;含有重要金屬嘅礦物就叫礦石礦物。礦物學就專門研究礦物。
當中又以矽酸鹽佔大多數,最罕有嘅係自然元素,因為需要好特定嘅情況先可以令極少化學元素唔同周圍其他元素產生化學作用而結合。
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