Do You Have a Sandstone or a Quartzite?
Quartzites are metamorphic rocks that were once quartz sandstones. The quartz sandstones change to quartzite from high heat and pressure deep inside the Earth. Sometimes quartzite rocks have the same, bedded look as the original sandstone, making the two hard to tell apart.
Filed under: Geology / Earth Science, Geology Education, Rocks - Igneous, Sedimentary & Metamorphic on October 21st, 2011 | No Comments »