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Agriculture · Q317

Soil Science

Graduate and Post Graduate · Agriculture · question 317

Q317

Pure soda feldspar is

A.
Albite
Answer
B.
Anorthite
C.
Orthoclase
D.
Microcline

Answer: Option A

Solution

Answer: Option A
Solution:
Soda feldspar is a crystalline mineral made up of mainly silica and alumina in combination with sodium and potassium oxides.
Albite is the Pure soda feldspar. The chemical formula of pure albite is NaAlSi3O8. It is a tectosilicate. Its colour is usually pure white and is a common constituent in felsic rocks.