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.
The most common causes of muscle pain are tension, stress, overuse and minor injuries. This type of pain is usually localized, affecting just a few muscles or a small part of your body. Systemic muscle pain â pain throughout your whole body â is more often the result of an infection, an illness or a side effect of a medication. Common causes of muscle pain include: Chronic exertional compartment syndrome. Chronic fatigue syndrome.
Research the causes of these more general types of symptom: 1  Pain (6458 causes). 2  Muscle symptoms (7251 causes). 3  Muscle pain (956 causes). 4  Muscle aches (879 causes). 5  Cramps (339 causes). 6  Sensations (6520 causes). 7  Aches (904 causes). 8  Nerve symptoms (9132 causes).