Question

Sandstone is soft to touch while
made of sandstone can
stand for hundreds of year .why?​

Answer 1

Answer:

Silica cemented sandstone is very durable and hard. Calcite cemented sandstone is subject to acidic dissolution and is more easily eroded. Clay and gypsum cements, which are soft minerals, tend to produce much softer sandstone and the sand can sometimes be rubbed off in a person's hands.

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