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Date Posted: 23:31:53 10/30/00 Mon
Author: Yen Wei
Subject: Regarding granite and weathering

Hi!

i'd like to confirm something about the mineral composition of granite:

1. Am i rite to say that it is composed mainly of feldspar, quartz and mica with trace amounts of amphiboles?

2. After weathering, it is true that clay materials are produced out of granite, together with oxides of iron?

3. Is it true that the presence of iron gives our soil the red colour??

Thank u!!

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