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how and where would the rock might have been formed that has large crystals of feldspar mica and quartz?
due to the large crystal grains of the rock and existence of feldspar and mica the rock could either be of igneous or metamorphic origin.incase it is of igneous origin the rock is intrusive igneous rock that form deep in the earth crust and cool at a relatively slow rate developing large crystals.in case of metamorphic origin the rock is high grade metamorphic rock that have experienced high metamorphic condition (high pressure and temperature);that is it is a gneiss that has characteristic coarse grains crystals.
What else can I help you with?
Are large crystals found in diorite?
Large crystals can be found in diorite, typically consisting of plagioclase feldspar and amphibole minerals. These crystals are formed from the slow cooling of magma deep within the Earth's crust, allowing for the growth of larger mineral grains.
How is Granodiorite formed?
Granodiorite is formed from the slow cooling of molten magma beneath the Earth's surface. It is a coarse-grained igneous rock that typically contains quartz, feldspar, and biotite or hornblende. The slow cooling allows for the growth of large crystals within the rock.
Is fluorite the biggest mineral in the world?
No, fluorite is not the biggest mineral in the world. While fluorite can form large crystals, there are other minerals such as quartz, feldspar, and calcite that can also grow to significant sizes. The size of a mineral can vary depending on the specific geological conditions in which it forms.
What rock is usually composed of several different mineral?
Granite is a common rock that is composed of several different minerals, such as feldspar, quartz, and mica. These minerals form large crystals and give granite its distinct speckled appearance.
What is the size of crystals in granite?
Crystals in granite can vary in size, but typically range from 1 mm to several centimeters in diameter. The size of crystals is influenced by factors such as the rate of cooling of the magma and the mineral composition of the granite.
What does granite form from?
In the volcano/magma chamber, different minerals that make up granite, (feldspar, quartz, etc.) mix to form grainy, large crystals of the different minerals. That is how granite is formed.
Is granite crystal or grain size?
Granite is a type of igneous rock that is composed of large crystals of minerals like quartz, feldspar, and mica. The crystals in granite can vary in size, ranging from small to very large, depending on the specific conditions under which the rock formed.
Are large crystals found in diorite?
Large crystals can be found in diorite, typically consisting of plagioclase feldspar and amphibole minerals. These crystals are formed from the slow cooling of magma deep within the Earth's crust, allowing for the growth of larger mineral grains.
How is Granodiorite formed?
Granodiorite is formed from the slow cooling of molten magma beneath the Earth's surface. It is a coarse-grained igneous rock that typically contains quartz, feldspar, and biotite or hornblende. The slow cooling allows for the growth of large crystals within the rock.
Which large blocky feldspar is found most often in association with large muscovite crystals?
Orthoclase feldspar is commonly found in association with large muscovite crystals. This mineral combination is often seen in pegmatite deposits, where slow cooling allows for the growth of large crystals.
Witch two rocks are composed primarily of quartz feldspar and clay minerals?
The two rocks primarily composed of quartz, feldspar, and clay minerals are granite and shale. Granite is an igneous rock that typically contains large grains of quartz and feldspar, while shale is a sedimentary rock formed from the compaction of clay minerals and silt. Both rocks are significant in understanding the Earth's crust and its composition.
What are Large Crystals in The Rock that glitter in the sunlight?
Quartz
What type of stone contain some really big crystals?
Igneous rocks such as granite can contain large crystals due to slow cooling and solidification of magma beneath the Earth's surface. This slow cooling allows for the formation of large mineral crystals such as feldspar, quartz, and mica. These crystals are typically visible to the naked eye and contribute to the distinctive appearance of granite.
Is fluorite the biggest mineral in the world?
No, fluorite is not the biggest mineral in the world. While fluorite can form large crystals, there are other minerals such as quartz, feldspar, and calcite that can also grow to significant sizes. The size of a mineral can vary depending on the specific geological conditions in which it forms.
Vein of extremely large grained minerals?
This is likely a pegmatite, which is a type of igneous rock known for its exceptionally large crystals. Pegmatites can contain minerals such as quartz, feldspar, and mica that have grown to substantial sizes due to the slow cooling and high concentrations of elements in the magma from which they formed. These minerals are often sought after by collectors for their impressive size and clarity.
What rock is usually composed of several different mineral?
Granite is a common rock that is composed of several different minerals, such as feldspar, quartz, and mica. These minerals form large crystals and give granite its distinct speckled appearance.
What is the size of crystals in granite?
Crystals in granite can vary in size, but typically range from 1 mm to several centimeters in diameter. The size of crystals is influenced by factors such as the rate of cooling of the magma and the mineral composition of the granite.
