Hardness on mohs scale is applied to minerals, not rocks. A rock may be composed of multiple minerals with different hardnesses. Additionally, the physical properties of igneous rocks vary, so there is no definitive answer.
diamond
where is rock salt on the moths hardness scale
Granite is a hard igneous rock with a hardness of around 6-7 on the Mohs scale. Its streak is typically colorless, leaving no streak on a streak plate.
Basalt scores an 8 on the Moh's scale. This makes it harder than quartz and vanadium, but weaker than boron and titanium carbide. It can easily scratch steel and glass. It is just about as hard as topaz. Basalt is also an igneous rock, formed by hardened lava, which explains why it is so hard.
Yes, granite is an igneous rock. It forms when molten magma cools and solidifies underground, creating a coarse-grained rock with a variety of mineral compositions, primarily quartz, feldspar, and mica.
Granite is not assigned a number on the Mohs scale of hardness. The Mohs scale is a measurement of the relative hardness of minerals. Because granite is a rock composed of a variety of minerals, only the individual minerals which compose it have a Mohs hardness.
depends a rock made from lava is an igneous rock.
Magnetite is considered to be a hard mineral, not a rock, because it has the ability to scratch glass and its hardness number is greater than 5.5 according to the Mohs scale.
diamonds
"Igneous" is a general classification, not a specific type of rock. The hardness values vary depending on the exact composition.
Talc
diamond
this question is stupid
where is rock salt on the moths hardness scale
Granite is not assigned a number on the Mohs scale of hardness. The Mohs scale is a measurement of the relative hardness of minerals. Because granite is a rock composed of a variety of minerals, only the individual minerals which compose it have a Mohs hardness.
Granite is a hard igneous rock with a hardness of around 6-7 on the Mohs scale. Its streak is typically colorless, leaving no streak on a streak plate.
This scale is correctly called the Mohs scale. Scientists use this scale to measure a rock's hardness or softness. They can discover how hard a mineral or rocks is and drill in to it and find out more about it.