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Granite has been around for 4 billion years
With With enough heat and pressure, granite will become gneiss so long as it is not hot enough to melt the granite.
Granite is a very resilient type of rock and is not prone to much erosion. types of erosion that could occur to granite are acid rain, coastal erosion (weather and salt from the sea damaging it) and weather erosion. it would take an extremely long period of time for erosion to become apparent.
granite
A rock can conceivably erode indefinitely. So long as it can be made into smaller and smaller pieces, perhaps into the element or molecule that composed that rock, it could be considered to have eroded. To truly answer this question, one would have to know precisely how much matter was present and a standard by which to erode the object. Such a standard may be removal of a set amount of matter or a binary fission or said matter. Long answer short, It could "erode" nearly infinitely, or at least until it reached the smallest division by which it could still be considered the rock in question.
Millions of years
Wind erosion is an ongoing process.
18 000 years to form because water had to erode it away
Because wind and rain erode it.
Granite has been around for 4 billion years
With With enough heat and pressure, granite will become gneiss so long as it is not hot enough to melt the granite.
Over long periods of time, the action of the surf upon the cliffs will further erode them. Water and the force of the water will cause erosion as well as the constant pelting of sand/debris laden water on rocks/cliffs.
The answer is in the question. Natural granite and engineered granite are like steak and beefburger. However, engineered granite is probably more practical and cheaper in the long run. See link.
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Most likely it would have been subjected to far more weathering; in paticular, a type ofphysical weathering called frost wedging. Cleopatra's needle is carved of granite and when exposed to constant freezing and thawing in severe climates such as most of Siberia experiences granite exhibits this type of weathering. Granite typically has small cracks and fissures or joints which can fill with water. Even though Siberia is relatively dry some water would be available to do this (over long periods of time especially). Water expands when it freezes which causes a wedging effect inside the crack and causes plates of rock to crack off. Over time this would most likely happen to Cleopatra's Needle in Siberia
From my understanding, "you get what you pay for", so although you can buy cheap granite counter tops, it is likely that they will crack or chip, and overall not last as long as the high quality granite.
Granite is a very resilient type of rock and is not prone to much erosion. types of erosion that could occur to granite are acid rain, coastal erosion (weather and salt from the sea damaging it) and weather erosion. it would take an extremely long period of time for erosion to become apparent.