Also used are jasper (red) and fluorite (blue). The serpentine subgroup (part of the kaolinite-serpentine group) are greenish, brownish, or spotted minerals commonly found in serpentinite rocks. They are used as a source of magnesium and asbestos, and as a decorative stone. The name is thought to come from the greenish color being that of a serpent.
Carrying extra weight causes more stress on the joints. Being obese therefore tends to accelerate the onset of OA. If you have arthritis, you know how difficult it can be to exercise with joint pain. Physical activity is key to weight loss, so having arthritis can make it even more difficult to drop those extra pounds.
1 This breakdown causes the bones to rub against each other, causing stiffness, pain and loss of movement in the joint. While osteoarthritis can affect the elbow, it is more common in weight-bearing joints, such as the knee and hip. Elbow OA is often the result of overuse or an injury.  Rheumatoid arthritis (RA).