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how the grains interlock and the pressure it formed under
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∙ 12y ago
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What symbiotic relationship is bacteria living on human skin?
It depends on weather you develop an infection from teh bacteria. There are naturally occuring bacteria on our skin all the time.
What is the case hardness of EN-19?
The hardness depends on the thermal and chemical treatment and is between 200 HB and 375 HB.
The color of a mineral's streak depends on the color of the mineral?
Yes all minerals have streaks, but since minerals have different levels of hardness it's harder to make some streaks than others that are easier to make like the streak of graphite.
How do you place value on gemstones and minerals?
It mostly depends on demand. It can be valued by color, shape, type, cut, density, luster, sheen and clarity.
What is a mineral's ability to scratch another mineral?
A mineral's resistance to being scratched (or when a force is applied) is called its hardness.There are different measurements of hardness: scratch hardness, indentation hardness, and rebound hardness. A material's hardness depends on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity.
Do all minerals have the same hardness?
it all depends what you are using them for
Characteristics of a mineral?
1.All minerals are formed by natural process2.Minerals are inorganic/nonliving3.Minerals are made up of one or more elements4.All minerals are solids
What is the hardness of gabbro in mohs hardness scale?
A rock's hardness is usually measured in compressive fracture strength rather than a Mohs hardness which measures a mineral's relative hardness in comparison to other minerals. ASTM standard tests have rated gneiss at 50-200 MPa (roughly 350-1400 psi), a range lower than slate, quartzite, or basalt.
What is the Mohs hardness of sandstone?
That depends on what minerals make up the sandstone. A very common sandstone is quartz arenite, and therefore on the Mohs scale of hardness it would be a seven.
What symbiotic relationship is bacteria living on human skin?
It depends on weather you develop an infection from teh bacteria. There are naturally occuring bacteria on our skin all the time.
What are the factors on which hardness of a material depends?
Hardness of a material depends on the type of bonding between atoms.
Can you scratch a mineral?
It depends on it's hardness and the hardness of what you're scratching it with.
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.
Hardness of the drivers seat?
There are many different levels of hardness in drivers seats. The level of hardness depends on the car and maker.
What the hardness of iron?
It depends on the deposit. What deposit are you talking about? What measure of hardness are you after? e.g. UCS, Moh's Hardness Scale e.t.c. On moh it is 4 Brinnel hardness it is 490
What is the hardness of rhyolite?
depends a rock made from lava is an igneous rock.
What is the hardness of iron on the Moh's scale?
Iron is not a mineral used in Moh's hardness scale.
