花崗岩 特徵 花崗岩是由地底深處的酸性岩漿慢慢冷卻形成的,因為冷卻時間長,礦物結晶顆粒較明顯,約0.1-0.5公分,主要礦物有石英、正長石(粉紅色)、白雲母與黑雲母。 分布 金門、馬祖。 野外觀察 台灣本島沒有花崗岩,金門全島皆是。 金門 花崗岩很堅硬,而且紋路美麗,常做為地磚、牆面等建材,大多是國外進口的。 花崗岩磚 牆面(捷運站)
金門
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