Category: Building Stones - Other Building Stones
Location: Philippines
Material Type: Limestone
Main Color: White
Surface Finish: Others
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Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams, and mollusks. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).
Limestone, quicklime and slaked lime are all used to neutralize excess acidity - which may be caused by acid rain - in lakes and in soils. Limestone is used as a building material, and to purify iron in blast furnaces. It's also used in the manufacture of glass, and of cement (one of the components of concrete).
