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.
â¢ High-Calcium Limestone: â¢ Magnesian Limestone: Lastly, some dolomites contain an excess of magnesium (Mg) and are called magnesian dolomite or high-magnesium dolomite. The excess magnesium is probably in the form of magnesium carbonate minerals, of which magnesite (MgCO3) is a possible candidate.oth are calcium-bearing carbonate minerals, meaning that they contain the chemical elements calcium (symbol Ca), carbon (symbol C) and oxygen (symbol O). Each carbon atom is combined with three oxygen atoms to form what is called carbonate (formula CO3).