What is the difference between limestone and marble
The limestone limestone also called calcite, calcium carbonate, its Mohs hardness value (MOH) 3. Limestone is a composition containing calcite single rock, calcite components accounted for 95%, which contains a small amount of minerals and clay minerals, siderite, dolomite, quartz, feldspar, mica and can reflect the color of the stone. The pure limestone is white. Limonite and siderite make the limestone produce a pattern and color of brown, such as red blood, sea green, chlorite green, asphalt ash until black. Produced from the sea of limestone from the physical change animal and plant debris, mud and calcareous skeletons in the water organic matter and other components. After the death of the organic matter, the carbonate is dissolved in seawater and accumulates on the sea floor. When the limestone is cut, it is found that there are intact or destroyed fossils inside the stone. Unless limestone forms a reef, in general, limestone from the sea has a layered structure. Its structure may be dense, perhaps with granular pores.
Most of the typical limestone pore density is less than 1%, compared with the marble, the density is much larger. Because of its crystal structure, many of the marble is translucent, generally visible thickness of more than 30 cm, rather than crystalline limestone is opaque. Due to the different origin of marble and internal components, different colors of natural stone. In the construction industry, people refer to the marble usually refers to a variety of stone, including limestone, dolomite and serpentine. The provisions of the United States Association for all: marble with natural calcareous and polishing brightness of the rock known as the marble business, including dolomite and serpentine. The limestone limestone also called calcite, calcium carbonate, its Mohs hardness value (MOH) 3. Limestone is a composition containing calcite single rock, calcite components accounted for 95%, which contains a small amount of minerals and clay minerals, siderite, dolomite, quartz, feldspar, mica and can reflect the color of the stone. The pure limestone is white.
Marble marble is also called metamorphic or recrystallized limestone. The real marble is a metamorphic rock calcite, and crystal structure. Marble is derived from limestone based on the metamorphism of regional stone, generally containing large, coarse texture of the crystal, of which more than 99% of the composition of calcite. Crystals are visible to the naked eye, especially on their surface.
