Feldspar

usgb/ˈfeldspɑːr/
noun

A type of rock-forming mineral that is commonly found in the Earth's crust.

Granite is made up largely of feldspar and quartz.
Visual representation of "feldspar" - A type of rock-forming mineral that is commonly found in the Earth's crust.

Often appears as...

  • orthoclase feldspar
  • plagioclase feldspar

Usage tips

Academic

Definition 1 of 1
Visual representation of "feldspar"
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Earth's Crust

Feldspar is abundant in Earth's crust, making it a common mineral in many rocks.

Illustration for Earth's Crust
Many hiking trails showcase rocks rich in feldspar.
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Varieties

Feldspar comes in different types, important for classifying and identifying rocks.

Illustration for Varieties
The feldspar in this sample is mainly plagioclase.
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Geology Use

The term 'feldspar' is often used in geology and earth science contexts.

Illustration for Geology Use
We learned about feldspar in our geology lecture today.
Visual representation of the word "Feldspar"

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