Are all sedimentary rocks hard

Answer 1

Hardness in a rock has different meanings. Although sandstone, a sedimentary rock, may be composed of quartz grains (relatively hard on the Mohs scale of mineral hardness), it might be loosely cemented by calcite crystals which are not so hard, making it crushable by the squeeze of a hand. There are other well cemented sedimentary rock types that are very resistant to breaking, however. Certain limestones, breccias, conglomerates, and sandstones take great effort to break into smaller pieces. In general though, geologists will refer to sedimentary rock as soft rock, and igneous rock as hard rock. Igneous rock has an interconnected crystalline structure which makes it very resistant to fracture.

Answer 2

Sedimentary rocks can be hard or soft. In the hard way it is shaped as a crystal structure. Sandstones are hard though. SO its hard and soft.

Further answer

Actually, sandstone may be hard or soft, depending on how it came about. And none are crystalline apart from the small sand crystals that are bound together to form the rock. Some sandstones are so hard they are good for building. But some are so soft you can wear them away with your finger. Although the sand particles that got deposited are themselves hard, they are glued together by different chemicals, some of which are very tenacious and make the resulting rock hard. But some are not and the rock is soft. Same with limestone, some is hard but some is very soft

Answer 3

Yes. All rocks are hard

2nd Answer:

Some rock, like sandstone, is less hard than others.

3rd answer:

The word "hard" is subjective. What might be "hard" to you or in certain situations might not be hard to others or in other situations.

The word "hardness" is a measurable quantity. Geologists often measure "hardness" using a field scale, called Moh's hardness, where diamonds have a hardness of 10 and Talc has a hardness of 1. Talc is a sedimentary rock and in my opinion not hard at all.

Answer 4

No, sedimentary rocks can range in hardness depending on the types of minerals they contain. Some sedimentary rocks, such as shale and mudstone, are relatively soft and easily crumble, while others, like sandstone and limestone, are harder and more resistant to weathering.

Answer 5

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Answer 6

hard

Answer 7

hard

Answer 8

soft