Marble
Marble, formed from limestone with heat and pressure over years in the earth's crust. These pressure or forces cause the limestone to change in texture and makeup. The process is called recrystallization. Fossilized materials in the limestone, along with its original carbonate minerals, recrystallize and form large, coarse grains of calcite.
Impurities present in the limestone during the recrystallization period affect the mineral composition of the marble which is formed. At relatively low temperatures, silica impurities in the carbonate minerals form masses of chert or crystals of quartz. At higher temperatures, the silica reacts with the carbonates to produce diopside and forsterite. At a very high temperatures, rarer calcium minerals, such as larnite, monticellite, and rankinite, forms in the marble. If water is present, serpentine, talc, and certain other hydrous minerals may be produced. The presence of iron, alumina, and silica may result in the formation of hematite and magnetite.
The minerals that result from impurities give marble a wide variety of colors. The purest calcite marble is white in colour. Marble containing hematite are reddish in color. Marble that has limonite is yellow, and marble with serpentine is green in colour.
Marble does not split easily into sheets of equal size and must be mined with care. The rock may shatter if explosives are used. Blocks of marble are mined with channeling machines, which cut grooves and holes in the rock. Miners outline a block of marble with rows of grooves and holes. They then drive wedges into the openings and separate the block from the surrounding rock. The blocks are cut with saws to the desired shape and size.
Physical Properties of Marble
Physically, these are recrystallized, Hard, Compact, fine to very fine grained metamorphosed rocks capable of taking shining polish.
Hardness |
3 to 4 on Moh's Scale |
Density |
2.55 to 2.7 Kg/cm3 |
Compressive Strength |
70 to 140 N/mm2 |
Modulus of Rupture |
12 to 18 N/mm2 |
Water Absorption |
Less than 0.5% , (except Rainforest Green/Brown with 2-3%) |
Porosity |
Quite low |
Weather Impact |
Resistant |
Chemical Properties of Marble
Chemically, they are crystalline rocks composed predominantly of calcite, dolomite or serpentine minerals. The other minor constituents vary from origin to origin.
Uses of Marble
Marble has always been highly valued for its beauty, strength, and resistance to fire and erosion. The ancient Iranian & Greeks were good user of marble in their buildings and statues. The Italian artist Michelangelo used marble from Carrara, Italy, in a number of sculptures. Marble from Tennessee was used in parts of the National Gallery of Art in Washington, D.C. The Lincoln Memorial, also in Washington, was built of marble from Alabama, Colorado, and Georgia.
Very pure calcite marble is used for most statues. They are translucent. Large blocks of colored marble are used for columns, floors, and other parts of buildings. Smaller pieces of marble are crushed or finely ground and used as abrasives in soaps and other such products. Crushed or ground marble is also used in paving roads and in manufacturing roofing materials and soil treatment products.
Ocurrances of Marble
Spain |
Andalucia region, El Monte Coto |
Italy |
Carrara |
India |
Masaron Ki Obri, Rishabhdeo (Kesariyaji), Udaipur, Rajasthan. Nai Parbati, Amet, Dist. Rajsamand, Rajasthan. Manpura, Dhariyawad, Dist. Udaipur. Sidhavatam, Kadapa Dist., Andhra Pradesh. Umpavally, Koraput Dist., Orissa |
Australia |
Buchan in Victoria, Bathurst/Orange in N.S.W., Ulan in Queensland |
Namibia |
Palisandro marble quarry 45 km south-east of Karibib |
China |
Southeast of Wumiao |
Marble Crusher
Marble crusher is a type of stone crushers that is used to crush Marble. Marble is the raw materials for construction, road, bridge and railway buiding and small Marble are also important for the manufacture of concrete. Natural Marble has all kinds of shape and size. So it is not suitable for buiding material. Marble crusher can crush native Marble into all kinds of size to create Marble for use in the concrete for the dam and other buiding. It is also used for making sand from marble, limestone, basalt, quartz, sandstone. Therefore, Marble crusher is the esssential mining and construction machine.
Marble crusher manufacturer - SBM
SBM is a famous manufacturer of marble crusher in China, and supply all kinds of stone crushers, grinding mills and other mining machines. Now, our marble crusher has been exported to some countries, such as USA, South Africa, Egypt, Mongolia, Germany, Russia etc. Of course, we not only supply marble crusher, but also a series of installation ans maintenance service. We hope make a deep cooperation with our customer, mutually beneficial and win-win.
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