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They have different compositions. Most igneous rocks fall into a spectrum ranging from mafic (low silica, dominated by iron, magnesium, and calicum) to felsic (high silica, dominated by sodium and potassium)
On this scale rhyolite is felsic while andesite is intermediate. Rhyolite is dominated by the presence of quartz, potassium feldspar, and sodium-rich plagioclase. Rhyolite also tends to contain more volcanic glass. Common colors of rhyolite are light gray, white, and pink. Andesite often contains plagioclase with a fiar balance of sodium and potassium. Plagioclase is also a common dominant mineral. Andesite is darker than rhyolite, ranging from gray to almost black.
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Which rock is most felsic out of rhyolite andesite and basalt?
Of these Rhyolite has the highest silica content.
What are some names of extrusive igneous rocks?
== == Rhyolite, basalt, pumice, obsidian, andesite, dacite, tuff, welded tuff, scoria.
Which intrusive and extrusive rocks have the same chemical composition?
Intrusive: Extrusive Equivalent Granite: Rhyolite Diorite: Andesite Gabbro: Basalt
What is the difference in composition between a dacite and an andesite?
Dacite is more felsic in composition, containing more silica.
What is the difference between rhyolite and granite?
The difference is the size of grains. Rhyolite is the felsic igneous rock with fine-grained size. Whereas, granite is the equivalent in composition but with coarse-grained size.
How do you determine whether a rock is a rhyolite or an andesite?
The composition of the rock will determine whether it is a rhyolite or an andesite.
Which rock is most felsic out of rhyolite andesite and basalt?
Of these Rhyolite has the highest silica content.
What are the types of extrusive volcanic deposit?
Ignimbrite, Andesite, Basalt, Rhyolite
Do diorite and rhyolite have the same chemical composition?
No. Diorite has the same composition as andesite while Rhyolite has the same composition as granite.
What is an andesite?
a dark, fine-grained, brown or grayish volcanic rock that is intermediate in composition between rhyolite and basalt.
What type of lava does the composite volcano has?
It varies in composition, but is usually andesite, dacite, or rhyolite.
What is a common location for Rhyolite rock?
You find rhyolite rock wherever you find andesite volcanoes or extinct andesite volcanoes. Topaz Mountain in western Utah (3 hours west of Provo) is a rhyolite mountain complete with garnet, topaz crystals, beryl, and other gemstones and minerals. If there are no dormant or extinct volcanoes in your area, your chances of finding rhyolite are slim to none.
What are types of volcanic rock?
Volcanic rocks are extrusive igneous rocks.
Can I get more examples of igneous rocks?
Peridotite, andesite, pumice, rhyolite, obsidian, granite, and basalt.
What are 12 types of igneous rocks?
diorite,gabbro,granite,obsidean,pumice,rhyolite,andesite
What are examples of extrusive rock?
Basalt, Andesite, Rhyolite, Obsidian, Pumice, Tuff, Ash (Lava).
What are some exaples of igneuos rocks?
basalt, granite, rhyolite, andesite, gabbro, obsidian, scoria, pumice.
