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Quartz can be present in igneous rocks if it crystallizes from magma during the cooling process. In sedimentary rocks, quartz can be derived from the weathering and erosion of pre-existing rocks rich in quartz, transported and deposited as sediment, and then cemented together to form the sedimentary rock.
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Is Amethyst an igneous or metamorphic rock?
Amethyst is a type of mineral from the quartz family, not a rock. Quartz is formed in igneous, metamorphic, and sedimentary environments, but amethyst specifically is often found in metamorphic rocks.
What mineral can scratch glass and be scratched by topaz?
Quartz is the mineral that can scratch glass and be scratched by topaz. Quartz ranks 7 on the Mohs scale of mineral hardness, scratching glass which ranks around 5.5. Topaz, ranking 8 on the Mohs scale, can scratch quartz but not glass.
What igneous rock is made up of mica feldspar and quartz?
The igneous rock most likely described is granite, which is composed predominantly of mica (specifically muscovite or biotite), feldspar, and quartz. This rock type forms from the cooling and crystallization of molten magma deep within the Earth's crust.
Two rocks that have the same general chemical and mineral composition?
According to the New York State Earth Science Reference Tables, the two rocks that have the same general chemical and mineral compositions are igneous rocks called andesite and diorite. They both have a composition that consists of quartz, plagioclase feldspar, biotite, pyroxene, and amphibole.
What igneous rock is aphanitic texture?
These are igneous rocks that are too fine textured to an extent that there mineral grains or crystalline texture cannot be seen or distinguished with the necked or unaided eyes. They appear or occur as a whole single massive crystalline extrusive body of Igneous origin. Example is Obsidian.
How the mineral quartz could be in an igneous rock and in sedimentary rock?
quartz is a basic mineral and can be in any type of rock
Is Amethyst an igneous or metamorphic rock?
Amethyst is a type of mineral from the quartz family, not a rock. Quartz is formed in igneous, metamorphic, and sedimentary environments, but amethyst specifically is often found in metamorphic rocks.
How the mineral Quartz could be in an igneous rock and in a sedimentary rock.?
Because the rock feels like it beotch.
How would the mineral quartz could be in an igneous rock and in a sedimentary rock?
Because the rock feels like it beotch.
Could quartz be considered a mineral?
Quartz is a mineral.
How the mineral quartz could be in an igneous and in sedimentary rock?
Quartz can be found in igneous rocks when it crystallizes from molten magma during the cooling and solidification process. In sedimentary rocks, quartz can be present as a result of weathering and erosion of pre-existing rocks, with the quartz grains being deposited and compacted over time to form sedimentary rocks like sandstone.
What group of rock does quartz belong to?
Quartz belongs to the mineral group known as silicates, specifically within the subgroup tectosilicates. It is composed of silicon and oxygen atoms arranged in a framework structure. Quartz is one of the most abundant minerals on Earth and is found in various types of rocks, including granite and sandstone.
What mineral can scratch glass and be scratched by topaz?
Quartz is the mineral that can scratch glass and be scratched by topaz. Quartz ranks 7 on the Mohs scale of mineral hardness, scratching glass which ranks around 5.5. Topaz, ranking 8 on the Mohs scale, can scratch quartz but not glass.
What igneous rock is made up of mica feldspar and quartz?
The igneous rock most likely described is granite, which is composed predominantly of mica (specifically muscovite or biotite), feldspar, and quartz. This rock type forms from the cooling and crystallization of molten magma deep within the Earth's crust.
Could a mineral have a crystal form but no cleavage?
Yes. Quartz can have very well-formed crystals but lacks cleavage.
What is a special mineral with crystals inside?
This could possibly refer to a geode, hollow round nodules with crystal linings, or it could refer to an inclusion, which is a transparent mineral that shows inclusions of another, eg. rutilated quartz.
What is the name of black mineral in igneous and metamorphic rocks?
The black in igneous and metamorphic rocks could be any of numerous black minerals. Two that are commonly found are biotite mica and hornblende.
