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Which is a coarse-grained igneous rock composed of mainly pyroxene plagioclase feldspar and olivine?
Gabbro.
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What is a coarse-grained rock composed of intermediate plagioclase feldspar and pyroxene?
The rock you are referring to is likely gabbro, which is a coarse-grained igneous rock composed mainly of intermediate plagioclase feldspar and pyroxene minerals. Gabbro forms from the slow cooling of molten magma deep within the Earth's crust, resulting in its coarse texture.
Which minerals are found in basalt and gabbro?
Basalt contains minerals such as plagioclase feldspar, pyroxene, and olivine. Gabbro also contains plagioclase feldspar and pyroxene, but generally has a coarser texture due to slower cooling rates underground.
Which intrusive igneous rock could be composed of 60 percent pyroxene 25 percent plagioclase feldspar 10 percent olivine and 5 percent amphibole?
This intrusive igneous rock could be a gabbro. Gabbros are composed mainly of pyroxene and plagioclase feldspar, with lesser amounts of olivine and amphibole. This composition suggests a mafic rock with dark minerals dominating.
What is the difference between diabase and diorite?
Diabase is a mafic, fine-grained igneous rock composed mostly of plagioclase feldspar and pyroxene. Diorite is also an igneous rock, but it is intermediate in composition between mafic and felsic, consisting mainly of plagioclase feldspar and amphibole. The main difference lies in their mineral compositions, with diabase containing more pyroxene and diorite containing more amphibole.
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.
What is the mineral of andesite?
plagioclase feldspar, pyroxene, horneblende (amphibole)
Which igneous rock is dark colored cooled rapidly on earths surface and is composed mainly of plagioclase feldspar olivine and pyroxene?
scoria
What minerals form the rocks diorite and andesite?
The minerals that form diorite include plagioclase feldspar, biotite, and hornblende. Andesite is primarily composed of plagioclase feldspar, pyroxene, and hornblende. Both rocks are intermediate in composition between granite and basalt.
What is a coarse-grained rock composed of intermediate plagioclase feldspar and pyroxene?
The rock you are referring to is likely gabbro, which is a coarse-grained igneous rock composed mainly of intermediate plagioclase feldspar and pyroxene minerals. Gabbro forms from the slow cooling of molten magma deep within the Earth's crust, resulting in its coarse texture.
Which minerals are found in basalt and gabbro?
Basalt contains minerals such as plagioclase feldspar, pyroxene, and olivine. Gabbro also contains plagioclase feldspar and pyroxene, but generally has a coarser texture due to slower cooling rates underground.
Which intrusive igneous rock could be composed of 60 percent pyroxene 25 percent plagioclase feldspar 10 percent olivine and 5 percent amphibole?
This intrusive igneous rock could be a gabbro. Gabbros are composed mainly of pyroxene and plagioclase feldspar, with lesser amounts of olivine and amphibole. This composition suggests a mafic rock with dark minerals dominating.
What is the difference between diabase and diorite?
Diabase is a mafic, fine-grained igneous rock composed mostly of plagioclase feldspar and pyroxene. Diorite is also an igneous rock, but it is intermediate in composition between mafic and felsic, consisting mainly of plagioclase feldspar and amphibole. The main difference lies in their mineral compositions, with diabase containing more pyroxene and diorite containing more amphibole.
What clasts would you obtain if you crushed gabbro?
If you crushed gabbro, you would obtain clasts primarily composed of minerals such as pyroxene, plagioclase feldspar, and olivine. These minerals are common in gabbro, which is a coarse-grained igneous rock primarily made up of these mineral components.
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.
What is the chemical composition of a basalt?
The mineralogy of basalt is characterized by a preponderance of calcic plagioclase feldspar and pyroxene. Olivine can also be a significant constituent.
What describes an andesite?
Andesite are fine-grainedextrusive, igneous volcanic rock composed essentially of plagioclase feldspar and one or more mafic minerals, such as hornblende, pyroxene or biotite.(Refer to Geology.com -Igneous Rocks)
What intrusive igneous rock has the same mineral composition as basalt?
Gabbro is an intrusive igneous rock that has the same mineral composition as basalt. Both rocks are composed primarily of plagioclase feldspar and pyroxene minerals.
