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What mineral can scratch glass but can be scratched by steel file?
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What mineral has a hardness of 5 Mohs scale nad can be scratched by a steel?
apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
How would a mineral collector determine the hardness of an unknown mineral specimen?
There are two ways. One way is to buy a scratch test kit and follow the instructions. They will tell you to try to scratch minerals of certain hardnesses and find the hardest one it can scratch. For example, if it scratches a mineral with a hardness of 6 but not one with a hardness of 7, the hardness would be between 6 and 7. If you do not have one of those available, you can try scratching common objects. Your fingernail is 1.5, a penny is 2.5, a pocketknife blade is 5.0, window glass is 5.5, a steel file is 6.5, and quartz is 7.0.
Can calcite scratch other minerals if so which one?
No.because calcite is softer then feldspar
Why can't non metals be scratched?
It depends on which non metals you mean. The ability to scratch a material depends on its hardness relative to the material you use to scratch it with. With your nails you can scratch materials softer than your nails, like some plastics and minerals. But nothing can scratch in diamond because it's the hardest material there is, but in turn diamond can scratch all other materials, since they're softer that diamond including all metals and non metals. So although most metals are relatively soft, there are many non metals that are softer that some metals. Trivia: the softest metal is mercury with a hardness of 0 (it's liquid at room temperature) The hardest metal is carbon steel with a hardness of around 8 to 9 The softest mineral is talc with a hardness of 1 The hardest mineral is diamond with a hardness of 10 (a form of pure carbon)
Can fluorite be scratched by a steel nail?
Yes. A steel nail has a Mohs hardness greater than that of fluorite.
What mineral can be scratched with a steel knife or window glass?
apatite with a steel knife feldspar with window glass
What mineral can scratch glass but not steel file?
n
What mineral can be scratched by a steel knife but not a copper penny?
You can scratch any mineral against a mineral with a higher place. Talc maybe?
What other mineral can scratch a steel knife or window glass?
diamond
What mineral has the same hardness as a fingernail?
GypsumHardnessMineralAssociations and Uses1Talc (Softest)Talcum powder. (can be scratched by a fingernail.)2GypsumPlaster of paris.Gypsum is formed when seawater evaporates from the Earth's surface. (May be scratched by a fingernail or by a copper coin.)3CalciteLimestone and most shells contain calcite.(Can be scratched by a steel pocket knife or sometimes a copper coin. Will scratch a fingernail, may scratch a copper coin.)4FluoriteFluorine in fluorite prevents tooth decay.(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.)5ApatiteWhen you are hungry you have a big "appetite".(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.)6OrthoclaseOrthoclase is a feldspar, and in German, "feld" means "field".(Will not scratch glass but will scratch steel blades, copper coins & fingernails.)7Quartz (Will scratch glass, steel blades, copper coins & fingernails.)8TopazThe November birthstone. Emerald and aquamarine are varieties of beryl with a hardness of 8. (Will scratch glass, steel blades, copper coins & fingernails.)9CorundumSapphire and ruby are varieties of corundum. Twice as hard as topaz.(Will scratch glass, steel blades, copper coins & fingernails.)10Diamond (hardest)Used in jewelry and cutting tools. Four times as hard as corundum.(Will scratch all of the above.)
What mineral do you scratch with a penny or steel wool for hardness?
Copper and steel have hardness of around 3 and 6 respectively on the Mohs scale. You can use them to test any mineral, and roughly estimate its hardness. If it's scratched by copper, it's less than 3, if it's scratched by steel but not by copper, it's between 3 and 6, if neither copper nor steel scratches it, then it's above 6.
What mineral has a hardness of 5 Mohs scale nad can be scratched by a steel?
apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
How would a mineral collector determine the hardness of an unknown mineral specimen?
There are two ways. One way is to buy a scratch test kit and follow the instructions. They will tell you to try to scratch minerals of certain hardnesses and find the hardest one it can scratch. For example, if it scratches a mineral with a hardness of 6 but not one with a hardness of 7, the hardness would be between 6 and 7. If you do not have one of those available, you can try scratching common objects. Your fingernail is 1.5, a penny is 2.5, a pocketknife blade is 5.0, window glass is 5.5, a steel file is 6.5, and quartz is 7.0.
Will 000 steel wool scratch glass?
will 0000 rock wool scratch windsheild glass
If you scratch glass with a steel knife would that be a physical change because it doesn't really change the molecules?
Yes, exactly. If you ever do not know just remember that the basic chemical properties of glass and scratched glass are the same, so it's definitely a physical change. good job!
What minerals have a hardness of 7 on the mohs scale?
Topaz is a common mineral with a hardness of 8 on the Moh's hardness scale. This means it can scratch glass and cannot be scratched with a knife blade or masonry (steel) nail.
What are you referring when you address the hardness of a mineral?
A minerals hardness is basically its tendency to scratch or be scratched by another mineral or object. For example if a mineral is very soft (Like Talc or Gypsum) then you can scratch it with your finger but if you have a very hard mineral such as diamond you will not be able to scratch it with anything other than another diamond. The hardness values are quantified in Mohs hardness scale using the numbers 1-10 with 1 being the softest (Talc) and 10 being the hardest (Diamond). Ordinary objects with a known hardness can be used to determine a minerals relative hardness by simply seeing if the object will scratch the mineral or not. Pencil lead=1.5, Fingernail =2.2-2.5, Penny=3.2-3.5, Pocketknife=5.1, Glass plate=5.5, Steel file=6.5, Streak plate=7.0
