Sedimentary, all limestones are sedimentary
Among granite, clay, chalk, Jurassic limestone, and Carboniferous limestone, granite is generally considered the hardest material. Granite is an igneous rock formed from the slow crystallization of magma, making it much denser and more durable than sedimentary rocks like chalk and limestone. Carboniferous limestone is relatively hard but not as tough as granite. Therefore, granite stands out as the hardest of these materials.
When or why? It's created from the fossilized remains of Sea Creatures (shells, claws, skeletons) and mud. It's hard stuff. The formation is therefore as any sedimentary rock. In most cases it would likely contain substantial Coal deposits.
Worlebury Hill, located in England, is predominantly made of carboniferous Limestone. This type of rock is common in the Mendip Hills area where Worlebury Hill is situated. It has been shaped and eroded over time to form its distinct landscape.
Limestone is the parent of rock of non foliated metamorphic. This is a very old type of rock.
igneous
The Redwall limestone exposed in the Grand Canyon is a sedimentary formation of the Carboniferous Period.
Among granite, clay, chalk, Jurassic limestone, and Carboniferous limestone, granite is generally considered the hardest material. Granite is an igneous rock formed from the slow crystallization of magma, making it much denser and more durable than sedimentary rocks like chalk and limestone. Carboniferous limestone is relatively hard but not as tough as granite. Therefore, granite stands out as the hardest of these materials.
Limestone is a sedimentary rock.
Limestone.
Limestone is the type of rock that is made primarily of calcium carbonate.
Limestone
When or why? It's created from the fossilized remains of Sea Creatures (shells, claws, skeletons) and mud. It's hard stuff. The formation is therefore as any sedimentary rock. In most cases it would likely contain substantial Coal deposits.
The Rock of Gibraltar is made of limestone.
LIMESTONE
Limestone is a sedimentary rock but due to metamorphosis it turns to Marble, a metamorphic rock.
Sedimentary Rock category.
Worlebury Hill, located in England, is predominantly made of carboniferous Limestone. This type of rock is common in the Mendip Hills area where Worlebury Hill is situated. It has been shaped and eroded over time to form its distinct landscape.