Which of the mineral groups is feldspar a part of Carbonates, Sulfides, Phosphates, Oxides, Halides, Native elements, Silicate materials, or Sulfates? What is the Transparency of feldspar?

1 Answer
SCooke
Mar 10, 2018

Silicates. It is not "transparent" in its natural state.

Explanation:

Feldspar is the name given to a group of minerals distinguished by the presence of alumina and silica (SiO2) in their chemistry. This group includes aluminum silicates of soda, potassium, or lime. It is the single most abundant mineral group on Earth.
https://mineralseducationcoalition.org/minerals-database/feldspar/

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