RXS Set of Sedimentary Rocks

Only 5% of the Earth's crust is sedimentary rocks. The rocks were originally igneous rocks, sedimentary rocks, and metamorphic rocks that weathered forming new rocks that cover 75% of the Earth's surface. The set of rocks below were originally older rocks that were subjected to increasing heat and pressure the caused the minerals in the rocks to recrystallize.  Magnetic sandTravertineWeathered graniteConglomerateSandstoneGreywacke ShaleOrganic limestoneDiatomaceous earthSedimentary coalRock SaltPetrified wood Our sedimentary rock kit contains each of the rocks listed above plus a 20 X power mini microscope.  The list of sedimentary rocks above are examples of the wide variety of sedimentary rocks that cover the Earth's surface.  Our Sedimentary Rocks books include information about each of the 12 sedimentary rocks in our set. A picture is included with specific information about each of the rocks in the kit. As students pick up and look at their rocks it helps them to remembe