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How is mineral hardness tested?
Mineral hardness is tested on a glass plate or usually a finger nail.
Which is 1 centimeter long fingernail or pencil?
Which is about 1 centimeter long: a fingernail or a pencil
What is a mineral's texture?
Texture refers to the size of the mineral crystals which comprise a rock.
Can talc scratch glass?
No. Talc is the softest mineral. It can't scratch anything that is harder that itself. Talc is number 1 on the Mohs scale, a scale of hardness, but diamond is number 10, which means that diamond is very much the harder of the two. You can't even scratch a diamond with a fingernail, hardness of about 2.5, so talc with even less hardness doesn't stand a chance against the mighty diamond! See Related Links below this box for more information about the hardness of talc, diamonds and other materials.
How do you use scratch in a sentence?
My cat scratch me badly
If you scrape a rock with your fingernail and your fingernail leaves a scratch it must be?
That the rock is softer than your fingernail, as harder materials would scratch your fingernail instead.
What is a word that matches to cut with a fingernail?
Scratch.
Can your fingernail scratch talc?
you can scratch talc becuase it is the softest mineral on the moth scale.
Why can your fingernail scratch talc?
Talc is a very soft mineral, ranking as 1 on the Mohs scale of hardness, and your fingernail is harder at around 2.5. This means your fingernail can easily scratch talc due to the difference in hardness levels.
What color is a fingernail scratch on the skin?
Most scratches from fingernails leave red marks where the scratch occurred.
What mineral you can scratch with your fingernail?
Talc is a mineral that is soft enough to be scratched by a fingernail. It has a Mohs hardness of 1, making it one of the softest minerals.
How do you get rid of scracthes on a car?
To determine if a scratch can be removed rather than having to refinish your vehicle, run your fingernail LIGHTLY over the scratch. If your fingernail catches it cannot be removed. If your nail doesn't catch the scratch can be removed by buffing the scratch with a compound. (if the scratch is still there, try sanding with fine grade sand paper 800grit or higher then repeat buffing)
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 are the two minerals that you can scratch with a fingernail?
Talc and gypsum are two minerals that can be scratched with a fingernail due to their low hardness on the Mohs scale.
What will scratch serpentine and what does not scratch it?
The Mohs hardness of serpentine is 2,5-3; it a soft mineral. Not scrached by a graphite pen; scratched by fingernail, copper etc.
Can a fingernail scratch a talc?
Talc i assigned a hardness of 1 according to the Mohs scale of hardness. This implies that talc has the least hardness and therefore is soft and can be scratched by a fingernail.
Can basalt be scratched by a fingernail?
Yes most certainly, but probably not the best thing to scratch with your nails.
