Rock microstructure includes the texture of a rock and the small-scale rock structures. They learn about rock types sedimentary igneous and metamorphic and about the occurrence of stresses and weathering in nature including physical chemical and biological weathering. Metamorphic Rocks Formation Properties Examples Slate Marble High Temperature Pressure Recrystallisation Deep In Earth S Crust Gneiss Quartzite Schist Geology Earth Science Gcse Revision Notes Students are introduced to three types of material stress related to rocks. . Intrusive igneous rocks crystallize below Earths surface and the slow cooling that occurs there allows large crystals to form. Here is a video I created for my 6th grade science students to help them studyI hope you enjoy. The words texture and microstructure are interchangeable with the latter preferred in modern geological literature. We describe these two basic types. Compressional torsiona...