____ are unstable at surface temperatures?

0 ⤊

____ are unstable at surface temperatures?

____ are unstable at surface temperatures and break down into clay.

I cant find the answer in any of my notes or the website for the course =(
I was thinking either 'igneous' or 'metamorphic' or I'm not sure if the teacher wanted something more like 'olivine' or something like that.

ideas??
thanks!

2007-10-08 12:52:21 · 1 answers · asked by Sarah 2 in Science & Mathematics ➔ Earth Sciences & Geology

1 answers

The right answer is probably feldspars, but many minerals break down into clay by surficial weathering processes.

2007-10-08 12:56:06 · answer #1 · answered by minefinder 7 · 0⤊ 0⤋