Feldspar is a rock-forming mineral. It is important industrially in making glass, ceramics, enamelware and soaps. It is also used in making bonding material for abrasive wheels, cements, fertilizer, tarred roofing materials and as a sizing or filler in textiles and paper.
Depending upon the cause, muscle pain can be mild or severe and debilitating. Muscle pain is the hallmark symptom of some chronic conditions like fibromyalgia. Related symptoms that can occur with muscle pain are tenderness, swelling, redness, or fever. Medically Reviewed by a Doctor on 3/2/2017.
Just a small sample of the links between anxiety and muscle pain include: 1  Muscle Tension The most common cause of muscle discomfort from anxiety is tension. 2  Muscle tension is one of the most common anxiety symptoms, occurring whenever you're experiencing stress.