0
What is the extrusive form of granite with extremely small crystals and a red pink or gray color?
Wiki User
∙ 12y ago
Rhyolite
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How do you differentiate granite from basalt?
Although they are both igneous rocks which have solidified from magma, granite is an intrusive igneous rock and basalt is an extrusive igneous rock. As an extrusive igneous rock, the magma that formed granite had a long time to cool underground, and therefore consists of larger, visible mineral crystals. Basalt on the other hand, cooled rather rapidly from magma after eruption from a volcano and therefore is aphanitic, with crystals too small to be seen with the naked eye. There is also a difference in chemistry. Granite is considered felsic, with a preponderance of silicate minerals like quartz and orthoclase feldspar. Basalt is considered mafic, with an abundance of heavier minerals like olivine and amphibole, thus making it heavier than granite. These minerals also give basalt a dark color compared to the lighter colored granite.
What is the difference between basalt and granite?
Granite is lighter in color than basalt. The color of the rocks is dependent on the mineral composition of the rock. Basalt is basic and contains a substantial amount of olivine whereas granite is acidic and is rich in quartz.Basalt is an extrusive igneous rock with small mineral crystals, formed when magma cools and solidifies rapidly; this is usually on the surface of Earth's crust, especially at incidents of seafloor spreading on the ocean floor as contact with seawater cools the magma rapidly.Granite is the foundation of the continental crust. Basalt is the foundation of oceanic crust.Granite is an intrusive igneous rock made from visible mineral crystals, a result of cooling over a longer period of time under the surface of the Earth.Another difference between basalt and granite include their joints. Basalt splits along columnar planes while granite splits along horizontal planes. This difference is due to the difference in their cooling process.granite is a sedimentary rock and basalt is a metamorphic rock
How is Intrusive igneous rock different from extrusive igneous rock?
The main characteristic to look for is mineral crystal size. Extrusive rock will exhibit an aphanitic texture, where individual crystals are not visible without magnification. Intrusive rock will exhibit phaneritic texture, where individual crystals are visible without magnification.
Are river rocks porous?
No. It is a fine grained extrusive volcanic rock that is light in color. It is usually not porous.
What do the yellow crystals in happy street do?
The yellow crystals as well as the red and blue crystals are for helping upgrade shops that require them for the upgrade. For example, the "Friends Hotel", and the "Modern House" both need 3 of each color crystal for the upgrade. You have to get the other color crystals from friends in the game as each player will only grow one color from their stone in the forest.
How do you differentiate granite from basalt?
Although they are both igneous rocks which have solidified from magma, granite is an intrusive igneous rock and basalt is an extrusive igneous rock. As an extrusive igneous rock, the magma that formed granite had a long time to cool underground, and therefore consists of larger, visible mineral crystals. Basalt on the other hand, cooled rather rapidly from magma after eruption from a volcano and therefore is aphanitic, with crystals too small to be seen with the naked eye. There is also a difference in chemistry. Granite is considered felsic, with a preponderance of silicate minerals like quartz and orthoclase feldspar. Basalt is considered mafic, with an abundance of heavier minerals like olivine and amphibole, thus making it heavier than granite. These minerals also give basalt a dark color compared to the lighter colored granite.
What is a mineral that has a black color the rock type is extrusive the composition has small crystals?
It could be any number of minerals such as biotite mica, or hornblende.
What is the difference between basalt and granite?
Granite is lighter in color than basalt. The color of the rocks is dependent on the mineral composition of the rock. Basalt is basic and contains a substantial amount of olivine whereas granite is acidic and is rich in quartz.Basalt is an extrusive igneous rock with small mineral crystals, formed when magma cools and solidifies rapidly; this is usually on the surface of Earth's crust, especially at incidents of seafloor spreading on the ocean floor as contact with seawater cools the magma rapidly.Granite is the foundation of the continental crust. Basalt is the foundation of oceanic crust.Granite is an intrusive igneous rock made from visible mineral crystals, a result of cooling over a longer period of time under the surface of the Earth.Another difference between basalt and granite include their joints. Basalt splits along columnar planes while granite splits along horizontal planes. This difference is due to the difference in their cooling process.granite is a sedimentary rock and basalt is a metamorphic rock
What rock is a metallic gray color that leaves a gray streak?
granite is grey in color and has crystals of mica, quartz all embedded in it, giving it a shiny and silver appearance
What is a dark fine grained rock called?
They are rocks formed from lava at or near the surface. Basalt is a typical fine-grained extrusive igneous rock, composed of mineral crystals that require magnification to see. The fine-grained texture is due to rapid solidification of the lava which leaves little time for large mineral crystal formation.
How is Intrusive igneous rock different from extrusive igneous rock?
The main characteristic to look for is mineral crystal size. Extrusive rock will exhibit an aphanitic texture, where individual crystals are not visible without magnification. Intrusive rock will exhibit phaneritic texture, where individual crystals are visible without magnification.
What determines the color of the granite?
The color and type of feldspar minerals largely determine the color of a particular granite.
Why are extrusive rocks dark in color?
Extrusive igneous rocks have elements like Fe, Mn, etc that oxidize in the atmosphere to give it a dark color.
What minerals determine the color of granite?
The color and type of feldspar minerals largely determine the color of a particular granite.
Are river rocks porous?
No. It is a fine grained extrusive volcanic rock that is light in color. It is usually not porous.
How does granite look and feel?
A granite countertop of sufficient quality should look and feel as smooth as glass.
What color is a igneous rock?
It could be Granite.
