The blood pressure decreases and complaints, such as fatigue and lassitude, make themselves felt. These symptoms may also occur after the meal because the blood gathers in the area of the digestive organs and is missing in the brain. Dizziness.
Non-foliated metamorphic rocks such as hornfels, marble, quartzite, and novaculite do not have a layered or banded appearance. Pictures and brief descriptions of some common types of metamorphic rocks are shown on this page. Hornfels is a fine-grained nonfoliated metamorphic rock with no specific composition.
Metamorphic Rocks. This rock type is formed when igneous and sedimentary rocks in the various layers of the crust undergo changes as a result of a change in temperature and pressure conditions. Typical metamorphic minerals are garnet, andalusite, kyanite, sillimanite, iolite, epidote etc.