Sure red granite is red granite, no one can doubt this nonsense. But i guess you mean red granite is red sandstone, and this is fundamentally wrong.



What is the Difference Between Sandstone and Granite?
Sandstone, as its name implies, is composed of many small grains of sand loosely held together. You may be able to rub some off with your hand. The grains will be small and there will be spaces between the grains. Granite on the other hand is formed from the melt underground, and has crystallized there. The crystals will be larger - up to cm size - and firmly bound.


How is granite different to sandstone?
Granite is an Igneous rock, sandstone is a sedimentary rock, sandstone is made up of grains that are bonded together lightly, you can even rub some of the grains off with your hands. Granite is not made from grains, they are deep into the mountains, and used for building materials, they even have crystals in them.

Granite is harder than sandstone for a start. Also granite has a crystal type structure whereas sandstone has a sedimentary structure which is weaker as it has been compressed and deposited in its formation which makes it weather easier.


Why is granite harder than sandstone?
Granite is composed of interlocking grains, a result of minerals solidifying at different temperatures as they cool from magma. This interlocking structure makes granite very durable and hard. Sandstone is formed of cemented sand sized grains. The bond between grains is not as strong as the interlocking grain found in granite.


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