Marble Silica Content

Practical reports on rheumatic and musculoskeletal diseases a case of localized scleroderma in a sculptor and his wife.

Marble silica content.

Typically marble is composed of the following major constituents. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble is typically not foliated although there are exceptions in geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone. Though granite marble and engineered stone all can produce harmful silica dust when cut ground or polished the artificial stone typically contains much more silica says a cdc researcher. Marble granular limestone or dolomite i e rock composed of calcium magnesium carbonate that has been recrystallized under the influence of heat pressure and aqueous solutions.

The table below describes typical silica quartz content of common natural and engineered. Marble total dust journal of clinical rheumatology. 38 42 lime cao 20 25 silica sio2 2 4 alumina al2o3 1 5 2 5 various oxides nao and mgo and 30 32 various carbonates mgco3 and others. In contrast granite can contain up to 45 50 silica.

Calcium based stones including limestone and certain varieties of marble e g calcite dolomite and onyx contain little or no silica. Occupational safety and health administration. Exposure to silica which is a component found in marble dust is one risk factor for developing scleroderma. Marble is commonly used for sculpture and as a building material.