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What minerals can be scratched with a knife?
Apatite
What coin is made out of copper?
The penny is made out of copper.
1991 5 cent coin stamped on a copper?
i have a 1991 5 cent coin printed on a copper(penny
What U.S coin is made out of copper?
The penny is made partly of copper.
What is the symbol equation for the formation of copper sulphide?
Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. Prominent copper sulfide minerals include Cu2S (chalcocite) and CuS (covellite).
What are 2 minerals that can be scratched by a fingernail?
Quartz (Mohs 7.0) and diamond (Mohs 10,0) are two of many minerals that are harder than copper (Mohs 2.5-3.0).
What minerals can be scratched by all other minerals?
science
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 minerals can be scratched by penny?
nickel
What minerals can be scratched with a knife?
Apatite
What is the difference between a minerals hardness and streak?
A minerals hardness is the ability to scratch or be scratched by other minerals and streak is the colored powder of a mineral that comes off when being scratched.
What mineral cannot be scratched by another mineral?
A diamond. Actually, a diamond can be scratched my other minerals.
What are the top five minerals that are best to make a coin?
Mineral are not used to make coins. Metals are not minerals. Metals used for coinage include copper, nickel, silver, gold, zinc and platinum.
A mineral that can be scratched easily by all other minerals is?
Talc is the softest mineral and can be scratched by any other mineral.
What property of minerals measures how easily a mineral can be scratched?
Hardness
What minerals are soft enough to be scratched by a fingernail?
talc, gypsum
Which of the following minerals is most resistant to being scratched?
Diamond
