Geology Lab: Rocks and Minerals ID Flashcards | Quizlet
parallel flat clay grains cause the rock to be fissile (break into sheets) slick when wet. fossiliferous limestone. gray to brown ... Rock salt. clear, white, gray cubic crystals and cleavage can be scratched with nail salty taste. Oolite Limestone. white, gray, beige small, tiny spheres in the rock all one size