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.
Skeletal muscle aches and pains are most often caused by injury or trauma resulting in muscle strain or tear. A muscle strain occurs when a few muscle fibers are damaged, whereas a muscle tear is a large number of muscle fibers that are ripped apart or torn.A torn tendon can also lead to muscle pain.keletal muscle aches and pains can also be caused by cramping of the muscles due to excessive or abnormal nerve impulses that make the muscles contract inappropriately.