Can two igneous rocks have the same mineral composition but be different rocks?
2- Gabbro and basalt are two igneous rocks having the same chemical composition, and the same minerals (plagioclase feldspar + pyroxene), but are of different origins. Gabbros form at depths and cool slowly, whereas basalts are volcanic rocks that crystallize rapidly at the surface of the earth.
Which two igneous rocks have the same minerals but different textures diorite and?
Texture indicates how a rock cooled. Igneous rocks are categorized in pairs. The two rocks in a pair have the same composition but different textures: gabbro-basalt, diorite-andesite, and granite-rhyolite.
How can two igneous rocks that look very different from one another have the mineral composition?
Igneous rocks can have many different compositions, depending on the magma they cool from. They can also look different based on their cooling conditions. For example, two rocks from identical magma can become either rhyolite or granite, depending on whether they cool quickly or slowly.
How are the two types of igneous rocks different?
Intrusive rocks have a coarse grained texture. Extrusive Igneous Rocks: Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth's surface. These are the rocks that form at erupting volcanoes and oozing fissures.
Is it possible for two igneous rocks to have the same mineral composition but be different rocks provide proof for your answer?
Yes, it is possible for two igneous rocks to have the same mineral composition but be different rocks.
Is it possible for two igneous rocks to have identical mineral compositions but be different rocks explain your answer and support it with an example?
Is it possible for two different types of igneous rocks to have the same composition and same texture explain your answer? No if two rocks have the same composition then they are the intrusive and extrusive equivalents of one another. Thus they cannot have the same textures.
How do intrusive igneous rocks form what is another name for these rocks?
Intrusive igneous rocks are also called plutonic. A pluton is an igneous rock body that forms within the crust.
How can igneous rocks be classified?
As has already been described, igneous rocks are classified into four categories, based on either their chemistry or their mineral composition: felsic, intermediate, mafic, and ultramafic. The diagram in Figure 3.16 can be used to help classify igneous rocks by their mineral composition.
What mineral is common in all igneous rock types?
Feldspars, quartz or feldspathoids, olivines, pyroxenes, amphiboles, and micas are all important minerals in the formation of almost all igneous rocks, and they are basic to the classification of these rocks.
What are two types of igneous rocks differentiate them Brainly?
Igneous rocks may be divided into two categories. Intrusive or plutonic rocks crystallize from magma beneath the earth's surface. Extrusive or volcanic rocks crystallize from lava at the earth's surface.
Can two minerals be the same if they have different chemical composition?
Polymorphism: two minerals with the same chemical composition but differing crystal forms. Example: diamond* and graphite* (the lead in your pencil) are both composed of carbon.
How can two igneous rocks made by the same process be so different in color?
He observes that one rock is light-colored and one is dark-colored. How can two rocks made by the same process be so different in color? They were worn down at different rates. The Grand Canyon was formed over millions of years as a river cut through the land.
Is it possible for two igneous rocks to have the same mineral composition but be different rocks Support your answer with an example quizlet?
Is it possible for 2 igneous rocks to have the same mineral composition but be different rocks? Use an example to explain your answer. Yes, volcanoes can make volcanic ash and Pumice. You just studied 6 terms!
How are different igneous rocks formed?
In essence, igneous rocks are formed through the cooling and solidification of magma ( or lava). As hot, molten rock rises to the surface, it undergoes changes in temperature and pressure that cause it to cool, solidify, and crystallize.
How are intrusive and extrusive igneous rocks alike?
Answer and Explanation: Intrusive and extrusive igneous rocks are alike in that they are both formed from the cooling and crystallization of molten substance (magma and lava,… See full answer below.
How do you identify minerals in igneous rocks?
The name of the igneous rock depends on what minerals are present. If there are lots of light-colored minerals and the rock is coarse grained, it is granite. If there are mostly dark-colored minerals and the rock is fine grained, it is basalt.
Can you determine what types of igneous rock share the same mineral composition?
For example, a felsic intrusive rock is called granite, whereas a felsic extrusive rock is called rhyolite. Granite and rhyolite have the same mineral composition, but their grain size gives each a distinct appearance.
Why are minerals found in igneous rocks?
There are relatively few minerals that are important in the formation of common igneous rocks, because the magma from which the minerals crystallize is rich in only certain elements: silicon, oxygen, aluminium, sodium, potassium, calcium, iron, and magnesium.
What makes minerals different from rocks?
A mineral is a naturally occurring substance with distinctive chemical and physical properties, composition and atomic structure. Rocks are generally made up of two of more minerals, mixed up through geological processes.
What is are the similarities of the two types of igneous rocks?
Answer and Explanation: Intrusive and extrusive igneous rocks are alike in that they are both formed from the cooling and crystallization of molten substance (magma and lava,…
What makes minerals different from each other?
Its chemical composition is different from other minerals. Each type of mineral has physical properties that differ from others. These properties include crystal structure, hardness, density, and color. For example, silver is a soft, shiny metal.
Why do different minerals have different properties?
Answer and Explanation: Minerals have different properties because they are made out of different elements. Minerals can be made of silicon, carbon, phosphorus, oxygen, iron, calcium, magnesium, and many other native elements. These native elements have different properties based on how many electrons they have.
Is it possible for two igneous rocks to have the same mineral composition but be classified by different names Support your answer with an example?
An igneous rock is classified on the basis of its mineral composition and the size of its mineral crystals. A rock formed from magma can have the same composition as a rock formed from lava. The rocks though will have different names because the sizes of their crystals will be very different.
Why do crystals in igneous rocks have different sizes?
When magma cools, crystals form because the solution is super-saturated with respect to some minerals. If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large.
How are different rocks formed?
Igneous rocks are formed from melted rock deep inside the Earth. Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.
What is the difference between extrusive and extrusive igneous rocks?
Extrusive igneous rocks come from lava, forming at the surface of the Earth and cooling quickly, meaning they form very small crystals. Intrusive igneous rocks come from magma, forming deep underground and taking longer to cool, meaning they form larger crystals.
How are mineral formed Are they all the same way or differently?
There are many types of minerals, and they do not all form in the same way. Some minerals form when salt water on Earth's surface evaporates. Others form from water mixtures that are seeping through rocks far below your feet. Still others form when mixtures of really hot molten rock cool.
What do all igneous rocks have in common?
Origin. Igneous rocks (derived from the Latin word for fire, ignis) can have very different mineral backgrounds, but they all share one thing in common: they formed by the cooling and crystallization of a melt.
What are minerals and how are they different from one another?
A mineral is a solid material that forms by a natural process. A mineral can be made of an element or a compound. It has a specific chemical composition. Its chemical composition is different from other minerals.
What is the similarities of intrusive igneous rock and extrusive igneous rock?
Intrusive and extrusive igneous rocks are alike in that they are both formed from the cooling and crystallization of molten substance (magma and lava,…