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Which mineral can be found in all samples of rhyolite and andesiteh igneous rock is dark colored cooled rapidly on Earth's surface and is composed mainly of plagioclase feldspar olivine and pyroxene?
The mineral that can be found in all samples of rhyolite and andesite is typically plagioclase feldspar, which is often present in varying compositions. Rhyolite and andesite are both volcanic rocks that cool relatively quickly on the Earth's surface, leading to their fine-grained textures. While olivine and pyroxene can also be present in these rocks, plagioclase feldspar is the primary mineral characteristic of both rhyolite and andesite.
What rock would form when basaltic magma cools?
When basaltic magma cools, it typically forms basalt rock. Basalt is a fine-grained, dark-colored volcanic rock rich in iron and magnesium minerals. It often contains characteristic minerals such as pyroxene, plagioclase feldspar, and olivine.
Which the following is a fine grained light colored extrusive igneous rock?
fine grained extrusive rocks can contain Potassium and Plagioclase Feldspar, Quartz, Biotite, Amphibole, Pyroxene and Olivine. these are all the choices for every igneous rocks
What are the common minerals in ignous rock?
Igneous Rocks have many different mineral compositions.---- * Felsic-High in silica,low density,light colored* Mafic-less silica than felsic,dark colored,higher density than felsic * Ultramafic-lowest content of silica
What minerals would you expect to find in a sample of gabbro?
Expect to find plagioclase in most phaneritic igneous rocks and often as phenocryts in aphanitic rocks. ... You will also find quartz grains resist scratching with a nail or pocket knife, ... The answer is that in hand samples it is nearly impossible. ... rhyolites while pyroxene occurs in dark-colored rocks like gabbro and basalt).
Sand collected at a beach contains a mixture of pyroxene olivine amphibole and plagioclase feldspar . The rock from which this mixture of sand came is best described as?
The rock most likely belongs to the igneous category, such as a basalt that contains pyroxene, olivine, amphibole, and plagioclase feldspar.
Which mineral can be found in all samples of rhyolite and andesiteh igneous rock is dark colored cooled rapidly on Earth's surface and is composed mainly of plagioclase feldspar olivine and pyroxene?
The mineral that can be found in all samples of rhyolite and andesite is typically plagioclase feldspar, which is often present in varying compositions. Rhyolite and andesite are both volcanic rocks that cool relatively quickly on the Earth's surface, leading to their fine-grained textures. While olivine and pyroxene can also be present in these rocks, plagioclase feldspar is the primary mineral characteristic of both rhyolite and andesite.
What does gabbro look like?
Gabbro is a dark-colored intrusive igneous rock that is composed mainly of pyroxene and plagioclase feldspar. It typically has a coarse-grained texture and can appear black, greenish-black, or dark gray in color. It can have a speckled appearance due to the presence of light-colored minerals like feldspar.
Which intrusive and extrusive rocks have the same chemical composition?
Intrusive: Extrusive Equivalent Granite: Rhyolite Diorite: Andesite Gabbro: Basalt
How do you define basalt?
Basalt is a dark-colored igneous rock that forms from the solidification of lava flows. It is fine-grained and typically rich in minerals like pyroxene and plagioclase. Basalt is commonly found in volcanic regions and oceanic crust.
What is granodiorite?
Granodiorite is an intrusive igneous rock. Its composition is similar to that of granite but it contains more plagioclase than potassium feldspar. Biotite and hornblende are also abundant minerals in granodiorite.
What minerals are in amphibolite?
The minerals in amphibolite are hornblende and plagioclase. Plagioclase are minerals that belong to the feldspar family. Other minerals in amphibolite are garnet, magnetite, quartz, and pyroxene.
Can gabbro contain the moneral quartz?
No, gabbro typically does not contain quartz. Gabbro is a coarse-grained, dark-colored intrusive igneous rock composed mainly of calcium-rich plagioclase feldspar and pyroxene minerals. Quartz is not a common mineral in gabbro due to its typically silica-poor composition.
What rock would form when basaltic magma cools?
When basaltic magma cools, it typically forms basalt rock. Basalt is a fine-grained, dark-colored volcanic rock rich in iron and magnesium minerals. It often contains characteristic minerals such as pyroxene, plagioclase feldspar, and olivine.
Which the following is a fine grained light colored extrusive igneous rock?
fine grained extrusive rocks can contain Potassium and Plagioclase Feldspar, Quartz, Biotite, Amphibole, Pyroxene and Olivine. these are all the choices for every igneous rocks
What minerals are present in felsic rocks and mafic rocks?
Felsic rocks are primarily composed of minerals like quartz, feldspar, and muscovite, while mafic rocks contain minerals such as olivine, pyroxene, and plagioclase. Felsic rocks have lighter-colored minerals and lower density compared to mafic rocks, which have darker-colored minerals and higher density.
What makes dark colored basalt rock?
Dark-colored basalt rock is primarily composed of minerals such as pyroxene and plagioclase feldspar, which are rich in iron and magnesium. This mineral composition gives basalt its characteristic dark hue, often appearing black or dark gray. The rapid cooling of lava during volcanic eruptions contributes to its fine-grained texture and dark coloration, as the minerals do not have time to crystallize into larger forms. Additionally, the presence of volcanic gases can influence the specific color and texture of the basalt as it solidifies.
