Marble Rock Appearance

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Marble rock appearance.

Commercially it includes all decorative calcium rich rocks that can be polished as well as certain serpentines verd antiques. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3 usually marble contains other minerals including quartz graphite pyrite and iron oxides these minerals can give marble a pink brown gray green or variegated coloration. Marble marble uses. Marble is a granular metamorphic rock it is derived from limestone or dolomite and it consists of a mass of interlocking grains of calcite or the mineral dolomite.

Petrographically marbles are massive rather than thin layered and consist of a. Form of it when limestone buried deep in the older layers of earth s crust is subjected to heat and pressure from thick layers of overlying sediments. Streak is the color of rock when it is crushed or powdered. Colour and appearance are their most important qualities.

And it also effervesces in dilute hydrochloric acid while quartzite does not react. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. 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. Marbles are used principally for buildings and monuments interior decoration statuary table tops and novelties.

Resistance to abrasion which is a function of cohesion between grains as well as the hardness of the component minerals is important for floor and stair treads. Quartzite and marble may be very similar in appearance but marble is a soft rock which is easily scratched with a needle. Rocks with hardness 1 3 are soft rocks from 3 6 are medium hardness rocks and 6 10 are hard rocks. The marble rocks is an area along the narmada river in central india near the city of jabalpur.

Marble is commonly used for sculpture and as a building material. It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is. This rock sample is not marble it is quartzite metamorphosed sandstone. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat.

In bhedaghat of jabalpur district in the state of madhya pradesh the river has carved the soft marble creating a beautiful gorge of about 8 km in length it is a popular indian tourist destination the local marble is mined and carved into various figures and transported all over india.