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What Is an Undersaturated Rock?

Maya Lin-Takahashi • • 6 min read
What Is an Undersaturated Rock?

In felsic and mafic rocks. rocks as oversaturated, saturated, or undersaturated with respect to silica. Felsic rocks

Felsic rocks
In geology, felsic is an adjective describing igneous rocks that are relatively rich in elements that form feldspar and quartz. ... The most common felsic rock is granite. Common felsic minerals include quartz, muscovite, orthoclase, and the sodium-rich plagioclase feldspars (albite-rich).
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are commonly oversaturated and contain free quartz (SiO2), intermediate rocks contain little or no quartz or feldspathoids (undersaturated minerals), and mafic rocks may contain abundant feldspathoids.

What is igneous rock examples?

Examples of intrusive igneous rocks are: diabase, diorite, gabbro, granite, pegmatite, and peridotite. Extrusive igneous rocks erupt onto the surface, where they cool quickly to form small crystals. ... These rocks include: andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.

What is basic igneous rock?

Basic rocks such as gabbro, dolerite and basalt are poor in silica and contain the minerals olivine, pyroxene, feldspar and/or quartz among others; they are also rich in the metals magnesium and iron and are often described as “mafic”. The intermediate rocks include diorite, microdiorite and andesite.

Maya Lin-Takahashi
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Maya Lin-Takahashi

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.