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What multi grained igneous rock is found in Wicklow?
Granite is the multi-grained igneous rock found in the Wicklow Mountains of Ireland. It is a coarse-grained rock formed from the slow cooling of molten magma deep within the Earth's crust. Granite is characterized by its interlocking crystals of minerals such as quartz, feldspar, and mica.
Is a igneous rock related to granite?
Yes, granite is a type of igneous rock. Igneous rocks are formed from the cooling and solidification of magma or lava, and granite specifically is a coarse-grained igneous rock composed mainly of quartz, feldspar, and mica minerals.
Do diorite and rhyolite have the same chemical composition?
No, diorite and rhyolite have different chemical compositions. Diorite is a coarse-grained intrusive igneous rock composed mainly of plagioclase feldspar and amphibole, while rhyolite is a fine-grained volcanic rock composed predominantly of quartz, feldspar, and mica.
What is Andesite texture?
Andesite texture refers to the fine-grained, intermediate volcanic rock composed mainly of plagioclase feldspar and amphibole minerals. It typically exhibits a porphyritic texture, with larger crystals (phenocrysts) embedded in a matrix of smaller crystals (groundmass). This texture is formed by the slow cooling of magma beneath the Earth's surface.
Is granite made from crystals or grains?
Granite is composed of numbers of individual mineral crystals and these crystals of individual minerals can be referred to as grains. Due to the formative processes involving granite, individual mineral crystals may not have what is popularly thought of as a crystal form, although they truly are mineral crystals. Grains could also be crystals or particles of other rocks which make up some sedimentary rocks. The grain size is part of the determination of the rock's texture: fine-grained, coarse grained, etc..
