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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.
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∙ 9y ago
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∙ 16y agoIgneous rock can range from unweathered basalt and granite which is very hard, to lava hairs which are brittle to the touch, or pumice, which can easily be broken with a hammer.
Wiki User
∙ 9y agoThe hardness of a rock refers to how easily that rock can be scratched or how resistant it is to abrasion. A diamond is considered to be the hardest with talc being the softest.
Wiki User
∙ 12y agoHighly variable, depending upon what the rock is made of. Granite, for example, made of quartz, feldspar, and mica, will be much harder than marble, which is composed of calcite.
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∙ 11y agothe hardness scale of minerals is the acid rain that couldn't wear down the rock
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∙ 14y agowhat's igneous rock hardness scale
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What is a rock with the hardness of '10' on the mohs scale?
diamond
Where does salt fall in the MOHs hardness scale?
where is rock salt on the moths hardness scale
Is granite an igneous rock?
Granite is an intrusive igneous rock.
What is the mohs scale for Feldspar?
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.
What is halite's hardness on mohs scale?
Halite, also known as rock salt, has a hardness of 2-2.5 on the Mohs scale. It is a relatively soft mineral that can be easily scratched with a fingernail or a pocket knife.
What is the hardness of rhyolite?
depends a rock made from lava is an igneous rock.
What is the scale for the Mohs 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.
What is the Mohs Scale of hardness for granite?
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.
A rock with 10 on the mohs scale?
diamonds
What is the mohs value for an igneous rock?
"Igneous" is a general classification, not a specific type of rock. The hardness values vary depending on the exact composition.
What rock has a hardness of 1 on the mohs scale?
Talc
What is a rock with the hardness of '10' on the mohs scale?
diamond
What is the hardness of coal on the Mohs hardness scale?
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
Is coal on the Mohs scale of hardness?
No. The Mohs scale only lists minerals. Coal is a sedimentary or metamorphic rock, depending on the variety.
What is a scale used to measure the hardness of a rock called?
The Mohs hardness scale.
A rock with a hardness on 10 on the Mohs scale?
this question is stupid
Where does salt fall in the MOHs hardness scale?
where is rock salt on the moths hardness scale
