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古老大地的花岡岩
Granite of Ancient Land
花岡岩的字源與「顆粒」有關，反映出花岡岩最重要的組織特徵。這些顆粒主要由石英、長石、雲母、角閃石等礦物彼此緊密鑲嵌形成，礦物顆粒大到肉眼可見，意味著花岡岩的形成時間長到足以讓礦物長成大的結晶。
花岡岩在地球的分布非常廣，尤其穩定的古老大陸都是由花岡岩組成，是見證地球深歷史的重要岩石。花岡岩也因為美麗的花紋與堅硬的物理性質，而廣泛運用在建築中。
The word granite has the same etymology as the word grain, which reflects the most prominent structural feature of granite. These grains are mostly quartz, feldspar, mica, and amphibole tightly interlocked with one another. The grains of these minerals are large enough to be discernable by the naked eye, meaning that the formation process of granite is long enough for the minerals to grow into large crystals.
Granite can be found in many parts of the world. Old continents, in particular, consist of granite, making it a rock that has born witness to the earth’s deep history. Due to its beautiful patterns and robust physical attributes, it is also widely used in construction.