Depends on which one. Diamond is a metamorphosed coal/carbon that is the hardest natural substance known. Marble is metamorphosed limestone that is much softer. It's safe to say that all metamorphosed rocks are harder than they were in their pre-metamorphosed form.
No.
Rock can be changed into metamorphic rock by heat and pressure.
Depends on which one. Diamond is a metamorphosed coal/carbon that is the hardest natural substance known. Marble is metamorphosed limestone that is much softer. It's safe to say that all metamorphosed rocks are harder than they were in their pre-metamorphosed form.
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Heat and pressure transform rock to metamorphic rock.
Quartzite is a common non-layered metamorphic rock formed from sandstone. It is characterized by its hardness and lack of foliation.
A group of minerals are called a rock, Quartz isn't a rock, it's a mineral. It has a hardness of around 7, it doesn't have cleavege but has a conchoidal fracture.
Marble is a metamorphic rock and the hardness of the marble is determined by the indigenous rock of the area rather than color. There are some white marbles, such as Vermont White (from Brazil) that had a hardness close to that of granite.
No, basalt is generally harder than marble. Basalt is a mafic extrusive rock that has a higher hardness and durability compared to marble, which is a metamorphic rock.
A metamorphic rock.
in a metamorphic rock you find rock.
Slate, being a metamorphic rock, would not have a hardness listing on the Mohs scale of mineral hardness.
No.
Chert is NOT a metamorphic rock.
Metamorphic rock displaying banding is referred to as foliated metamorphic rock.
Rock can be changed into metamorphic rock by heat and pressure.
Schist is a medium-hard metamorphic rock that forms from the alteration of other rocks under high temperatures and pressures. It can range in hardness depending on the minerals present, but generally falls between 2.5 to 4 on the Mohs scale of hardness.