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What kind of rock is harder than a steel has a hardness of 6.5. A?
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Classification of a rock determined by making a scratch on it?
The hardness of a rock is determined by scratching it with a harder material.
What is the hardness of a volcanic rock?
That varies widely between different types of volcanic rock. Obsidian or volcanic glass, is harder then pumice, but both are volcanic rocks.
If rock A cuts across rock B what does this indicate about their hardness?
Rock A has a superior hardness to rock B
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.
Where does salt fall in the MOHs hardness scale?
where is rock salt on the moths hardness scale
Classification of a rock determined by making a scratch on it?
The hardness of a rock is determined by scratching it with a harder material.
How do you test the property of HARDNESS?
Actually yes, testing a hardness of a rock can be done at another rock to see if it is harder than another rock. You scratch another rock to measure, or you can use a thing designed like a pen with a number (moh's hardness scale) of the rock for it.
Hardness of steel?
hard as a rock that is hard with extra hard bits
What kind of rock is harder?
Hevy Metel
What is 5 times harder than a metal?
What is 5 times stronger than metal? Steel - Because steel is a compound which steel is like a hard rock! Unbreakable! Steel can be even harder then ever which means it can be stronger then 5 more like 100 but that is only SOME types! Steel is way harder, yes 5 times harder!
What is the hardness of a volcanic rock?
That varies widely between different types of volcanic rock. Obsidian or volcanic glass, is harder then pumice, but both are volcanic rocks.
How could you test which rock is harder?
Rock hardness is usually a factor of its ability to withstand an applied force. Hit them repeatedly with equal blows from a hammer. The first to fracture will be the weaker rock.
Which is harder basalt or granite?
Both basalt and granite are types of rock, and a rock is composed of multiple minerals - except for some rocks composed of essentially one mineral like limestone (calcite) or quartzite (quartz). Minerals are crystalline compounds with known characteristics such as hardness, specific gravity, etc Therefore the hardness of the rock depends on the exact location on the rock you are testing the hardness, as it will vary from mineral to mineral. Some minerals even have differential hardness. Granite is composed of quartz, feldspar, and usually some ferromagnesian minerals such as biotite or hornblende (depending on the definition of a granite). Basalt is composed mostly of plagioclase (a feldspar) and pyroxene. Each of those minerals has a different hardness, and geologists never use the hardness of a "rock" to determine what kind of rock it is. Basalt is usually much finer grained than granite so it would be virtually impossible to determine the hardness of the individual mineral crystals. On Moh's hardness scale, the hardness of these rock-forming minerals are as follows: Quartz 7 Feldspar 6 (depending on the species of feldspar) Biotite 2.5-3 Pyroxene 5-6 (depending on the species of pyroxene) So the hardness of a rock is determined by the minerals, and in a coarse grained rock like a granite, the hardness can vary widely. The hardest mineral in granite (quartz) is harder than the hardest mineral in basalt (feldspar), but that's not enough to say that granite is conclusively harder than basalt. The resistance to breaking of a rock (which could be confused with the apparent hardness to a non-expert) is greatly affected by fractures, weathering, induration, welding, and many other features which are independent of mineral content.
How do you tell that a rock is flint?
Flint is a common name for a form of sedimentary rock called chert, formed from microscopic siliceous (essentially quartz) skeletons of radiolarians. As such the hardness of chert is 7, which is slighly harder than glass and considerably harder than steel. If it will scratch glass it is likely to be flint. Flint is often mistaken for limestone or marble, which is much softer and will not scratch glass.
If rock A cuts across rock B what does this indicate about their hardness?
Rock A has a superior hardness to rock B
What effect does the hardness of a rock have on the rate at which a rock abrades?
The harder a substance is, the longer it takes for it to erode.
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.
