* Limestone is primarily composed of calcium carbonate (calcite). Calcite has a Mohs hardness of 3.
* Conglomerate is a sedimentary rock made up of rounded fragments of other rocks, bound together by a cementing material. The Mohs hardness of conglomerate varies depending on the composition of the fragments.
Here's a simplified explanation:
* Limestone is relatively soft, and you could scratch it with a copper coin.
* Conglomerate could be harder or softer depending on what kind of rocks are in it. For example, if it contains quartz fragments, it would be harder than limestone.
Therefore, comparing the Mohs hardness of limestone and conglomerate is not straightforward. Limestone consistently has a Mohs hardness of 3, while conglomerate's hardness varies depending on the rock fragments it contains.
