before we get to interesting facts about granite stone it is better to say Most contractors will quote the price for granite Usually between $40 and $100 per square foot. Granite is the most common intrusive rock in the continental crust, it is known as pink, white, gray and black decorative stone.
It is coarse to medium grain. The three main minerals are feldspar, quartz and mica, which occur as silvery muscovite or dark biotite or both. Of these minerals, feldspar predominates, and quartz usually makes up more than 10 percent.
The alkali feldspars are often pink, which means that the pink granite is often used as an ornamental stone. Granite crystallizes from silica-rich magma kilometers deep in the earth’s crust. Many mineral deposits form almost crystalline granite bodies from hydrothermal solutions released by such bodies.
Origin of name: The name first appeared in the works of the English botanist, doctor and philosopher Caesalpinus in the 16th century.
Group – plutonic.
Color: Pink gray.
Structure: abundant, restrictive.
Texture: veneer (medium to coarse grained). , holocrystalline, pan-hypidiomorphic grained, porphyritic in places.
Changes: The rock is unchanged, feldspar is rarely sold
The main minerals of granite: Orthoclase, quartz, biotite, muscovite and plagioclase, which is twin according to the albite layers and oscillating zones. The chemical composition of the core corresponds to oligoclase and andesine (An30-38), while more acidic oligoclase and andesine occur at the periphery.
chemical composition
Global Average of the chemical composition of Granite by weight percentage
From 2,485 analyses:
SiO2 72.04% (silica)
Al2O3 14.42% (Alumina)
K2O 4.12%
Na2O 3.69%
CaO 1.82%
FeO 1.68%
Fe2O3 1.22%
MgO 0.71%
TiO2 0.30%
P2O5 0.12%
MnO 0.05%
Always contains quartz and feldspar. With or without many other minerals (auxiliary minerals), quartz and feldspar often give granite a bright color. from pink to white The light background color is separated by the dark complementary minerals.
So the classic granite has a “singular” look. The most common mineral inclusions are black mica biotite and amphibole black hornblende. Almost all these rocks are igneous rocks. The random arrangement of grains in granite – not dust – is evidence of betel origin Rocks of the same composition as granite can be formed by long and intense metamorphism of sedimentary rocks. But this type of stone has a strong structure and is often called granite.
Density + Melting Point
The average density is between 2.65 and 2.75 g/cm3, the compressive strength is usually above 200 MPa, and the viscosity near STP is 3-6 • 1019 Pa s. The melting temperature is 1215-1260 ° C. good but has a strong secondary permeability
Found in large plutons on several continents. in areas where the earth’s crust is deeply eroded This is logical, because granite in deep-seated locations must harden very slowly to produce such large mineral grains.
Plutons with an area of less than 100 square kilometers are called stocks. and the larger plutons are called batholiths. Lava erupts all over the world. But lava of the same composition as granite (rhyolite) only erupts on the continent. This means that granite must have been formed by the melting of continental rocks. This happens for two reasons: the addition of heat and the addition of volatile material.
The continent is quite warm because it contains almost all the uranium and potassium on earth. which heats the environment through radioactive decay.
Where the crust is thicker, it tends to heat up inside. (e.g. in the Tibetan Plateau) and plate tectonic processes, especially subduction. can create magma under the continent In addition to the heat This magma also emits CO2 and water, which allows all rocks to melt at lower temperatures.
It is believed that large amounts of basaltic magma can be plastered to the bottom of the continent through a process known as subsurface plating. With the release of heat and liquid from the basalt gradually. Many continental crusts can be transformed into granite at the same time.
Where can I find it?
Until now, it was known that it was found on Earth as much as any continent that is part of the Earth’s crust. The rock is found in small stock-like masses less than 100 square kilometers in size. or in the Batholiths that are part of the Organic Mountains.
Together with another continent and sedimentary rocks generally form underground slopes. It is also found in lacolite, trenches and sills, as well as in granite elements. Other rock formations include alpid and pegmatite. An adhesive with a finer particle size formed at the border of a granite strike. Finer pegmatites than granite are generally used together with granite.
use of granite
The ancient Egyptians built pyramids of granite and limestone.
Other uses In ancient Egypt these were columns, door lintels, sills, mouldings, and walls and floors.
Rajaraja Chola, Chola Dynasty in South India In the 11th century, India built the world’s first granite temple, Brihadeeswarar Temple, in Tanjore. which is dedicated to Lord Shiva, built in 1010
in the Roman Empire Granite has become an integral part of the major building materials and building language.
They are mostly used as large stones. It is scratched like a useful stone because of its difficult to accept structure, and it is shiny and polished to carry a clear charge.
Used in interior spaces for polished granite slabs, tiles, benches, tiled floors, steps and many other practical and decorative functions.
modern
Engineers often use polished granite surface slabs to create reference planes because they are impermeable and inflexible.
production of granite
It is mined all over the world. But most exotic colors come from granite in Brazil, India, China, Finland, South Africa and North America. Mining this rock is a capital and labor intensive process. Granite is removed from the sediment by cutting or spraying. Special slicers are used to cut pieces of granite into portable slabs. which is packed and transported by rail or
Secondary minerals of granite: zircon and apatite, mainly as components of biotite, titanite, orthite, magnetite, pyrite.
granite stone price per square foot
Basic granite slabs have the price between $40 and $60 per square foot. Prices skyrocket to $75 to $100 per square foot for rare colors, stones and patterns. In the upper part of the QAPF classification of plutonic rocks (Streckeisen, 1976), the granite field is defined by the composition of quartz (Q 20 – 60 %) and the P/(P + A) ratio between 10 and 65.
The granite field consists of two subfields: syenogranite and monzogranite. Only rocks that protrude within the syenogranite are considered granite in the Anglo-Saxon literature. In the European literature, rocks that occur in both syenogranite and monzogranite are referred to as granites.
The monsogranite subfield contained adamellite and quartz monzonite in older units. The Subcommittee on Rock Pouring most recently recommends rejecting the term adamellite and calling as quartz monzonite only rocks that outcrop within the quartz monzonite range sensu stricto.
Always contains quartz and feldspar. With or without many other minerals (auxiliary minerals), quartz and feldspar often give granite a bright color. from pink to white The light background color is separated by the dark complementary minerals.
So the classic granite has a “singular” look. The most common mineral inclusions are black mica biotite and amphibole black hornblende. Almost all these rocks are igneous rocks. The random arrangement of grains in granite – not dust – is evidence of betel origin Rocks of the same composition as granite can be formed by long and intense metamorphism of sedimentary rocks. But this type of stone has a strong structure and is often called granite.
Density + Melting Point
The average density is between 2.65 and 2.75 g/cm3, the compressive strength is usually above 200 MPa, and the viscosity near STP is 3-6 • 1019 Pa s. The melting temperature is 1215-1260 ° C. good but has a strong secondary permeability
the birth of granite
Found in large plutons on several continents. in areas where the earth’s crust is deeply eroded This is logical, because granite in deep-seated locations must harden very slowly to produce such large mineral grains.
Plutons with an area of less than 100 square kilometers are called stocks. and the larger plutons are called batholiths. Lava erupts all over the world. But lava of the same composition as granite (rhyolite) only erupts on the continent.
This means that granite must have been formed by the melting of continental rocks. This happens for two reasons: the addition of heat and the addition of volatile material. The continent is quite warm because it contains almost all the uranium and potassium on earth. which heats the environment through radioactive decay.
Where the crust is thicker, it tends to heat up inside. (e.g. in the Tibetan Plateau) and plate tectonic processes, especially subduction. can create magma under the continent In addition to the heat This magma also emits CO2 and water, which allows all rocks to melt at lower temperatures.
It is believed that large amounts of basaltic magma can be plastered to the bottom of the continent through a process known as subsurface plating. With the release of heat and liquid from the basalt gradually. Many continental crusts can be transformed into granite at the same time.
Where can I find it?
Until now, it was known that it was found on Earth as much as any continent that is part of the Earth’s crust. The rock is found in small stock-like masses less than 100 square kilometers in size. or in the Batholiths that are part of the Organic Mountains. Together with another continent and sedimentary rocks generally form underground slopes.
It is also found in lacolite, trenches and sills, as well as in granite elements. Other rock formations include alpid and pegmatite. An adhesive with a finer particle size formed at the border of a granite strike. Finer pegmatites than granite are generally used together with granite.
The ancient Egyptians built pyramids of granite and limestone.
Other uses In ancient Egypt these were columns, door lintels, sills, mouldings, and walls and floors.
Rajaraja Chola, Chola Dynasty in South India In the 11th century, India built the world’s first granite temple, Brihadeeswarar Temple, in Tanjore. which is dedicated to Lord Shiva, built in 1010
in the Roman Empire Granite has become an integral part of the major building materials and building language.
They are mostly used as large stones. It is scratched like a useful stone because of its difficult to accept structure, and it is shiny and polished to carry a clear charge.
Used in interior spaces for polished granite slabs, tiles, benches, tiled floors, steps and many other practical and decorative functions.
Engineers often use polished granite surface slabs to create reference planes because they are impermeable and inflexible.
production of granite
It is mined all over the world. But most exotic colors come from granite in Brazil, India, China, Finland, South Africa and North America. Mining this rock is a capital and labor intensive process. Granite is removed from the sediment by cutting or spraying. Special slicers are used to cut pieces of granite into portable slabs. which is packed and transported by rail.
Granite is the best known igneous rock. Many people know granite because it is a common igneous rock found on the Earth’s surface. And because granite is used to make many objects that are encountered in everyday life. These include counters. Floor tiles, paving stones, sidewalks, treads, building plywood and cemetery monuments. Granite is used all around us – especially if you live in a modern big city.
An introductory geology textbook reports that granite is the most abundant rock in the continental crust. At the surface, granite is exposed in the cores of many mountain ranges. Within a large area known as “Batholith” and in the core area of the continent known as “Shield”.
The large mineral crystals in granite are evidence of the gradual cooling down slowly from molten rock material Slow cooling takes place below the earth’s surface and takes a long time to occur. If these granites come from the current water surface. The only way this can happen is if the granite is raised and the rock above is eroded.
Most of the world’s continents are covered by sediments or sedimentary rocks. The rock below is mostly granite. metamorphosed granites or closely related rocks These deep granites are often referred to as “basement rock”
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