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.
Which two igneous rocks could have the same mineral composition?
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.
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.
Which igneous rocks have the same composition but differ in their texture?
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.
Why can two rocks look very different even though they are made of the same minerals?
Different rocks have different characteristics because of their minerals, the ways in which the rocks were formed, and the processes that acted on the rocks since they were formed.
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.
Why can two igneous rocks have the same minerals but different names?
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.
Is it possible for two rocks with the same composition to form different types of rocks?
Yes it is possible for two igneous rocks to have the same mineral composition but be different rocks.
What is the composition of igneous rocks?
Composition refers to a rock's chemical and mineral make-up. For igneous rock, the composition is divided into four groups: felsic, intermediate, mafic, and ultramafic. These groups refer to differing amounts of silica, iron, and magnesium found in the minerals that make up the rocks.
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.
Can two different minerals have the same chemical composition Support your answer with an example?
Different minerals can have the same chemical composition but different crystal structures. For example, graphite (the “lead” in pencils) and diamond both consist only of carbon. However, their atoms are arranged in different patterns, giving them different crystal structures.
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.
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.
What determines mineral composition of igneous rocks?
In addition to texture, igneous rocks may are classified according to their chemical composition. The most general classification is based on the relative abundance in a rock of felsic (feldspar and silica-quartz) minerals vs mafic (magnesium and ferrum or iron) minerals.
How would you describe different igneous compositions?
Composition refers to a rock's chemical and mineral make-up. For igneous rock, the composition is divided into four groups: felsic, intermediate, mafic, and ultramafic. These groups refer to differing amounts of silica, iron, and magnesium found in the minerals that make up the rocks.
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!
Can two different minerals be composed of the same 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.
Can minerals be formed in more than one process?
Answer 2: Minerals can form in several ways. They can form when magma crystallizes. They can also form due to weathering of existing rocks, or they can form by precipitating dissolved chemicals from water.
How are minerals formed in igneous rocks?
In igneous and metamorphic rocks minerals may occur in the cracks, crevices, faults or joints. The smaller occurrences are called Veins and the larger is called Lodes. In most cases, they are formed when minerals in liquid/molten and gaseous forms are forced upward through cavities towards the earth's surface.
What is composition of igneous rocks?
Composition refers to a rock's chemical and mineral make-up. For igneous rock, the composition is divided into four groups: felsic, intermediate, mafic, and ultramafic. These groups refer to differing amounts of silica, iron, and magnesium found in the minerals that make up the rocks.
What are the two composition types of igneous rock?
Igneous rocks can be divided into four categories based on their chemical composition: felsic, intermediate, mafic, and ultramafic.
What is the mineral composition of igneous rocks?
The major mineralogical components of igneous rocks can be divided into two groups: felsic (from feldspar and silica) and mafic (from magnesium and ferrous iron).
Is it possible for an igneous rock to become another igneous rock?
10. Can an igneous rock become another igneous rock? If so, how? Yes, by melting again and then solidification.
How are minerals formed are they all formed 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.
How are minerals formed in different types of rocks?
The four main categories of mineral formation are: (1) igneous, or magmatic, in which minerals crystallize from a melt, (2) sedimentary, in which minerals are the result of sedimentation, a process whose raw materials are particles from other rocks that have undergone weathering or erosion, (3) metamorphic, in which …
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.
What kind of minerals make up most igneous rocks?
Most are composed of the eight most abundant elements in the Earth's crust. Because of the dominance of oxygen and silicon in the crust, igneous rocks are mostly made up of silicate minerals. These silicates can be generally divided into light and dark silicates.
Can a sedimentary rock become another igneous rock if so how?
Explanation: When Sedimentary rocks are heated with tremendous heat and pressure, it will melt and be back again to magma. After some time it will cool and harden and will become Igneous rocks.
Can an igneous rock become a metamorphic rock?
Granite is an igneous rock that forms when magma cools relatively slowly underground. It is usually composed primarily of the minerals quartz, feldspar, and mica. When granite is subjected to intense heat and pressure, it changes into a metamorphic rock called gneiss.
Are minerals formed the same or different?
Minerals form when rocks are heated enough that atoms of different elements can move around and join into different molecules. Minerals are deposited from salty water solutions on Earth's surface and underground.