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Which o the following minerals can you scratch with a knife blade but not wit a copper coin?
Minerals that can be scratched with a knife blade but not with a copper coin typically have a hardness between 3.5 and 5 on the Mohs scale. For instance, minerals like calcite (hardness 3) can be scratched by a copper coin but not by a knife blade, while minerals like fluorite (hardness 4) can be scratched by a knife but not by a copper coin. Therefore, minerals like fluorite would fit your criteria.
What else can I help you with?
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.
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.
Where is the obsidian blade on ghostscape 2?
In Ghostscape 2, the obsidian blade can be found in the attic of the haunted house. Look for a hidden compartment near the window where you can retrieve the obsidian blade.
Can you scratch a copper coin with a knife blade?
Yes, it is possible to scratch a copper coin with a knife blade as copper is a relatively soft metal compared to steel. However, the knife blade needs to have a harder material rating in order to scratch the copper.
What is harder a steel file can scratch a penknife blade or calcite scratches a copper coin?
Calcite scratching a copper coin is harder because calcite has a higher Mohs hardness scale rating than copper. Steel files can scratch penknife blades because steel is harder than the blade material, which is usually softer.
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 mineral will scratch with a window glass or a knife blade?
A mineral that will scratch with a window glass but not with a knife blade is a mineral with a hardness between 5.5 and 6.5 on the Mohs scale, such as orthoclase or peridot.
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 minerals have a hardness of 7 on the mohs scale?
Minerals that have a hardness of 7 on the Mohs scale include quartz, beryl (which includes emerald and aquamarine), and garnet. These minerals are relatively hard and can scratch materials with a lower hardness rating.
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.
What minerals can be scratched with a knife?
Minerals that have a hardness less than that of a knife blade (5.5 on the Mohs scale) can be scratched with a knife. These minerals include gypsum, calcite, and talc.
How do you remove stickers from windows?
Use a flat,1 sided razor blade.If you keep the blade flat it wont scratch.
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 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!
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.
