Geological resistance is a measure of how wellminerals resist erosive factors, and is based primarily onhardness,chemical reactivity andcohesion.[1] The more hardness, less reactivity and more cohesion a mineral has, the less susceptible it is to erosion. Over time, differences in geological resistance in the same geological formation can lead to the formation of columns and arches, like those inMoab, Utah; and of bridges, like Utah'sRainbow Bridge.
