There are many. A few would be diorite, granite, gabbro, and basalt.
Igneous Rock
Granite is a coarse grained igneous rock without Pyroxene.
Basalt
It is just the hard sort. Most hard rock was constructed by slow solidification of magma but some metamorphosed sedimentary and igneous rocks can also be considered to be 'hard rock'. And most igneous rocks except volcanic ejecta are hard. But to a geologist a hard rock usually means a slowly solidified magma in which minerals had time enough to form visible crystals.
When magma crystallizes, igneous rocks are formed. The type of igneous rock that is formed depends on the chemical composition of the magma and the rate at which it cools.
Granite is the name of the igneous rock used in monuments.
its called igneous rock.
Igneous rock is generally hard rock because it forms from the solidification of molten magma below or at the Earth's surface, resulting in a crystalline structure that is dense and strong. However, the hardness can vary depending on the specific mineral composition and cooling history of the rock.
Igneous rock.
Igneous Rock
Igneous is formed when a hot liquid rock cools down and becomes hard.
The hard igneous rock is spelled "basalt".
Granite is a coarse grained igneous rock without Pyroxene.
Basalt
It is just the hard sort. Most hard rock was constructed by slow solidification of magma but some metamorphosed sedimentary and igneous rocks can also be considered to be 'hard rock'. And most igneous rocks except volcanic ejecta are hard. But to a geologist a hard rock usually means a slowly solidified magma in which minerals had time enough to form visible crystals.
Igneous rocks form from hot molten rock. The term igneous comes from the Latin word ignis meaning "fire."
The cooling and hardening of magma deep underground results in igneous rock. Rare gems and diamonds can be found in igneous rock.