Gluten, a protein found in wheat, barley, rye, spelt and oats) can cause celiac disease, which triggers severe inflammation throughout the body and has been linked to autoimmune diseases, mood disorders, autism, schizophrenia, dementia, digestive disorders, nutritional deficiencies, diabetes, cancer, and more.
Rhyolite is an igneous rock in the class designated as  felsic  rock. This class of rock crystallizes from silicate minerals at relatively low temperatures and with relatively a high percentage of silica.It is at the low temperature extreme of the Bowen reaction series.hyolite is much less common than granite, but there are large lava flows and deposits of rhyolite in Yellowstone Park, Wyoming, USA. These rhyolite formations are along the Snake River in Hell's Canyon on the Idaho-Oregon border.
so the only difference between the categorizations are how the rock formed and not by what its made of. for instance granite is the intrusive rock that has the same chemical composition as rhyolite. most igneous rocks can be paired this way.