why does potassium feldspar crystallize last from an initially mafic magma?
Sunday, May 2nd, 2010 at
2:37 PM
I can’t find an answer to this question, and the test is due in 3 1/2 hours. Anyone’s help would be appreciated!
Filed under: Potassium Questions
Like this post? Subscribe to my RSS feed and get loads more!
Because it has the lowest melting point. As the magma cools, it slowly drops in temperature. As the temperature drops, it reaches the melting point of many of the minerals in the magma. When it reaches these melting points that particular mineral solidifies and crystallizes. Thae last mineral to solidify will be the one with the lowest melting point, in this case potassium feldspar