Eczema, or atopic dermatitis, is a chronic, allergic skin condition. It is most common in infants and young children with a family history of asthma and allergies. Patchy areas of skin become dry, itchy, and irritated.czema, or atopic dermatitis, is a chronic, allergic skin condition. It is most common in infants and young children with a family history of asthma and allergies. Patchy areas of skin become dry, itchy, and irritated.
The mineral is the pure form, and Dolomite rock is composed mostly of Dolomite but also with impurities such as Calcite, Quartz, and Feldspar.
1 However, since coal is often found interlayered with clastic rocks, we'll discuss coal with the clastic rocks.  Carbonate rocks include limestone, which is made of calcite (CaCO3), and dolostone , which is made of dolomite (CaMg(CO3)2). Dolomite often forms when limestone recrystallizes after burial.