Marble is for taking a high polish and is used for building, sculpture, and decorative purposes. Marble is composed mainly of calcite, which makes it susceptible to acidic substances, but its impurities (like clay, sand, or oxides) give it a wide variety of colors and veining.
Key characteristics
Composition: Primarily calcite, but also contains dolomite and impurities like iron oxides, graphite, and mica, which create its colors and patterns.
Formation: A metamorphic rock that forms when limestone is subjected to intense heat and pressure, causing it to recrystallize.
Hardness: Relatively soft, with a hardness of about 3 on theThis makes it easy to carve but also prone to scratching and etching.
Porosity: It is porous and can be stained, so it is often recommended to seal it.
Reactivity: Reacts with acids, which can cause it to dissolve over time, especially in the presence of acid rain.
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