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What mineral that you can't scratch with your fingernail but a copper penny will?
The mineral that you can't scratch with your fingernail but can be scratched by a copper penny is calcite. Calcite has a hardness of about 3 on the Mohs scale, while fingernails have a hardness of around 2.5. A copper penny, which has a hardness of approximately 3.5, can easily scratch calcite.
What is a mineral determined by using a fingernail penny or nail?
A mineral's hardness can be determined using a fingernail, penny, or nail by testing its ability to scratch or be scratched by these objects. The Mohs scale of hardness ranks minerals from 1 (talc) to 10 (diamond), with a fingernail typically rated at 2.5, a penny at about 3.5, and a nail around 5.5. By attempting to scratch the mineral with these items, you can estimate its hardness based on which objects can scratch it and which cannot.
How hard is a penny?
a penny has a hardness of 3 depending on what it is being scratched on.
What is a penny on Mohs hardness scale?
A penny has a Mohs hardness of around 3.5. This means that it can be scratched by harder materials like glass or quartz, but it can scratch softer materials such as chalk or talc.
Can sedimentary rocks be scratched by a penny?
Yes, sedimentary rocks can often be scratched by a penny, as they typically have a hardness of 3 to 4 on the Mohs scale. A penny, made primarily of copper, has a hardness of about 3.5, allowing it to scratch softer sedimentary rocks like limestone or sandstone. However, harder sedimentary rocks like some shales may resist being scratched by a penny.
Does graphite scratch gypsum?
Yes, graphite is harder than gypsum, so it can scratch gypsum.
What minerals can scratch a penny?
calcite
Will a copper penny scratch a quarts?
No because a coper penny is and quartz is 7 so any ting softer than 7 cannot scratch
Will fluorite scratch a penny?
no because fluorite is softer than a penny
Which mineral would a penny scratch?
A penny would scratch minerals with a lower hardness rating such as calcite, gypsum, or talc. Minerals like quartz or topaz would not be scratched by a penny because they are harder than the metal in a penny.
Penny was holding a penny in her hand and a dymond in the other one she tries to scratch the dymond with the penny what is she testing?
Hardness of the dimond
What mineral that you can't scratch with your fingernail but a copper penny will?
The mineral that you can't scratch with your fingernail but can be scratched by a copper penny is calcite. Calcite has a hardness of about 3 on the Mohs scale, while fingernails have a hardness of around 2.5. A copper penny, which has a hardness of approximately 3.5, can easily scratch calcite.
What can a copper penny scratch?
A copper penny can scratch materials with a Mohs hardness of 2.5 or lower, such as gypsum, talc, and some plastics. It will not scratch harder materials like glass, steel, or most ceramics.
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.
What is the pin code in YoVille game cards?
The pin code is the number you have to scratch off with a penny or something. You can find that pin code at the back of the game card where it says "scratch gently with a penny" then you'll find the code once you scratch it off.
If you scratch a penny with an steel file, will the copper of the penny rub off on the file, or the steel (iron) of the file rub off on the penny?
The copper of the penny will rub off the file
What is a mineral determined by using a fingernail penny or nail?
A mineral's hardness can be determined using a fingernail, penny, or nail by testing its ability to scratch or be scratched by these objects. The Mohs scale of hardness ranks minerals from 1 (talc) to 10 (diamond), with a fingernail typically rated at 2.5, a penny at about 3.5, and a nail around 5.5. By attempting to scratch the mineral with these items, you can estimate its hardness based on which objects can scratch it and which cannot.
