igneous rock
เว็บไซต์ igneous rock Igneous Rocks in Britain Gabbro hills in the Isle of Skye, a large intrusion formed about 50 million years ago Lava flow on the Isle of Staffa, formed therock88 Basalt: the most common volcanic rock on Earth Composed of essential calcic plagioclase and pyroxene, sometimes with olivine, feldspathoids or interstitial
igneous rock Igneous rocks Igneous rocks are formed by the crystallisation of a magma The difference between granites and basalts is in silica content and their Igneous Rock Classification · Frothy Texture · Glassy Texture Originates from cooling too rapid to allow crystal lattices to form Igneous rock classification is based in two main features: the modal mineralogy and grain size, which is also a criterion to distinguish
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