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Which o the following minerals can you scratch with a knife blade but not wit a copper coin?
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What minerals are harder than blade?
includes: Quartz, Topaz, Corundum, and Diamond. Look up MOHS Hardness Scale. It shows minerals (1-10) softest to hardest. :)
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.
What are the designations of a three-prong plug?
On a three prong plug there will be a neutral blade, a "hot" blade and a ground blade. The neutral blade is wider that the "hot" blade. In North America the ground blade is "U" shaped.
Which blade is the longest in a 3 pin plug?
The ground blade is the longest in a three blade plug.
When did Thunder Blade happen?
Thunder Blade happened in 1987.
What is harder a steel file can scratch a penknife blade or calcite scratches a copper coin?
the blade would be stronger because the copper would brake easier
Can you scratch a copper coin with a knife blade?
Yes because a copper coin (being made of copper which is a 3 on the Mohs scale of hardness), is not as hard as a knife blade (which is a 5.5 on the Mohs scale of hardness).
How can one determine the hardness of a mineral using Mohs scale need explain the technique and what is Mohs scale?
The Mohs Scale of Hardness is used to measure hardness of a mineral, which is its resistance to scratching. It is a quantitative scale, which relies on the relative hardness of other minerals . Higher numbered minerals scratch lower numbered ones. You can use every day objects like a glass plate, a knife, or a nail to distinguish hard and soft. Hard minerals scratch glass, but can't be scratched with a knife blade of a nail. Soft minerals will not scratch glass, but can be scratched with a knife blade or masonry nail. You can purchase hardness kits to help make these distinctions.
What mineral will scratch with a window glass or a knife blade?
Diamond will scratch anything.
MY wiper blade is stripped but the motor works?
but a new blade, or take an engraver and scratch new grooves and pack with metal to fill gap. ive done it it works.
How do you remove stickers from windows?
Use a flat,1 sided razor blade.If you keep the blade flat it wont scratch.
If a knife blade scratches the surface of a mineral that mineral is considered hard?
Most knives have a rockwell hardness of 54-62. this is for metals. minerals are considered ceramics and therefore should have more hardness. It really depends ont he pressure applied. With enogh pressure any knife can scratch any mineral.
How do you find hardness of an unknown mineral?
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.
What minerals are harder than blade?
includes: Quartz, Topaz, Corundum, and Diamond. Look up MOHS Hardness Scale. It shows minerals (1-10) softest to hardest. :)
What is a vinyl cutter?
A vinyl cutter is a scratch free blade which cuts all types of vinyl. However the blade is easily broken so you should use a different cutter. Hope this helps people of the world!
How do you clean paint off laminate bench top?
Razor blade cautiously not to scratch, then use Mineral Spirits wipe off excess.
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.
