Is Granite Or Sandstone More Resistant To Acid Rain

A lake surrounded by granite rock is likely to suffer more damage from acid rain because the granite is composed of silicates and does not undergo any acid base reaction.

Is granite or sandstone more resistant to acid rain.

Granite is extremely resistant and sandstone a little less so due to the percentage of quartz that each rock type contains. Sandstone is also primarily composed of silica and is thus resistant. Granite is commonly used as a building stone and for ornamental pieces and is very resistant it is also very hard to work. Granite in the earth s structure when beds of freshwater lakes are made of soils and rocks containing calcium and magnesium the acid rain is neutralized and a healthy alkaline level is maintained.

The longer the acid rain sits on the granite the more quickly it deteriorates the stone. Granite is composed primarily of feldspars and quartz which are much higher on the hardness scale making it more resistant to abrasion weathering. Surprisingly the price of a headstone or memorial while definitely affected by the material used is more often a factor of style size engraving custom design and location. Additionally granite has an interlocking.

Limestone is a rock that is composed of calcium carbonate caco3. Granite s lack of reaction with acid also means that gravestone made of granite are going to last longer than those. Therefore it will not buffer acid rain like limestone will. A few sandstones are less resistant because they contain a carbonate cement that dissolves readily in weak acid.

While more resistant than limestone it is subject to attack by weak acids and so performs poorly in outdoor environments subject to acid rain. Acid rain is rain that has an excess of protons h present usually as a result of pollutants in the air. Conversely granite will withstand even severe weather. Granite sandstone marble or limestone.

Which type of rock is most resistant to acid rain. This is due to the wind and rain getting into the pores of the soft marble finish. Granite is extremely hard and less affected by the freeze thaw cycle the forces of abrasion and the surface exfoliation processes that are all a part of physical weathering.