The last and highest rank of coal is anthracite. Unlike the other types of coal, this high-energy coal is hard and black, burning with little smoke. As different types of coal are used in different applications, varying processes and process engineering are required.
Copper is a common treatment for rheumatoid arthritis and osteoporosis because it helps promote healthy collagen in the body, copper may relieve aching joints and minimize loss in mineral bone density. An old folk remedy for arthritis calls for wearing a copper bracelet to reduce pain and inflammation.
Copper Toxicity Symptoms. Excess copper in the body has a stimulating effect on the nervous system, similar to amphetamines or caffeine. Copper toxicity symptoms may affect any organ or system but it tends to accumulate in the liver, the brain, and the reproductive organs.