2006-10-14 08:40:27 · 2 answers · asked by Steel Magnolia 2 in Science & Mathematics ➔ Earth Sciences & Geology
The schists are metamorphic rocks whose minerals are large enough to distinguish (unlike slate) and are aligned aproximately parallel to each other (foliated), so the rocks tend to split easily into flat slabs. Muscovite schist has a lot of muscovite (light or clear mica). The micas are silicate minerals that form flat, plate-like crystals.
Photo of muscovite schist at this site:
http://gpc.edu/~pgore/Earth&Space/GPS/metamorphic.html
Photo of staurolite muscovite schist and description here:
http://www.pitt.edu/~cejones/GeoImages/6MetamorphicRocks/Schist.html
2006-10-14 09:54:50 · answer #1 · answered by luka d 5 · 0⤊ 0⤋
Silvery looking and flaky, because of its chief constituent, Muscovite Mica, which because of its molecular structure, its know as a "Sheet Silicate"
2006-10-14 16:12:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋