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Which mineral has a hardness of 2.5-3 and makes a good electrical insulator?
Wiki User
∙ 10y ago
Biotite mica
Wiki User
∙ 10y ago
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What unusual charateristic does mica have and how is it useful?
Mica is a soft mineral (Mohs hardness of 2-2.5), and has perfect cleavage in one direction. It also has a shiny luster, which makes it useful in paint and makeup manufacture. It is used as an insulator in electrical equipment and because of its resistance to heat it has been used as a replacement for glass in furnace and stove windows. The low hardness makes it useful as a very mild abrasive, and it is used in some toothpastes.
What is the mineral with a hardness of 1 on the Mohs scale?
Talc is the mineral with a hardness of 1 on the Mohs scale.
Hardest material on earth?
The hardest material in the world is Wurtzite, it is very much same as that of a diamond but is more complex than diamond and thus makes it stronger than diamond. Wurtzite boron nitride becomes 80% stronger after the re-orientation process, and this makes it the hardest substance found on earth.
What are some uses for Corundum?
Corundum is very hard. It serves as the index mineral with a hardness of nine on the Mohs Hardness Scale. It is the third hardest mineral known, with diamond and moissanite being the only minerals with a greater hardness. This high hardness makes corundum especially useful as an abrasive. Crushed corundum is screened to produce uniformly-sized grits and powders. These are used as grinding media and used to manufacture polishing compounds, sand papers, grinding wheels and cutting tools. The costs of manufacturing abrasives have been declining through innovation. Synthetic corundum is increasingly being used as an abrasive instead of natural corundum.
How do you make a good insulator?
the insulator s metal must has fully filled orbital without any free electron
Which mineral has a hardness of 2.5 3 and makes a good electrical insulator?
Biotite mica
What mineral makes hardness?
calcium
What unusual charateristic does mica have and how is it useful?
Mica is a soft mineral (Mohs hardness of 2-2.5), and has perfect cleavage in one direction. It also has a shiny luster, which makes it useful in paint and makeup manufacture. It is used as an insulator in electrical equipment and because of its resistance to heat it has been used as a replacement for glass in furnace and stove windows. The low hardness makes it useful as a very mild abrasive, and it is used in some toothpastes.
What makes a good electrical insulator?
An electrical insulator is a material whose internal electric charges do not flow freely. Rubber, glass, paper, and Teflon, which have high resistivity, are very good electrical insulators.
What is difference between hardness and streak?
Streak is the color it makes when two minerals scratch against each other. Hardness is just how hard the mineral is
What does Good electrical insulator mean?
An insulator is a material that does not conduct well, so an electrical insulator is a material that does not conduct electricity well. A metal is a bad electrical insulator as it has delocalised electrons, therefore conducts electricity, but most plastics and materials like rubber do not conduct electricity, so they are good electrical insulators. Hope that makes sense and helps? :3AnswerAn insulator is a material with insufficient free charge carriers to support conduction.
Why is tape a good insulator?
Duct Tape is made of rubber and since rubber is a good insulator that makes duct tape a good insulator. The best tape for insulating is electrical tape.
Why is duct tape a good insulator?
Duct tape is made of rubber and since rubber is a good insulator that makes duct tape a good insulator. The best tape for insulating is electrical tape.
What is the mineral with a hardness of 1 on the Mohs scale?
Talc is the mineral with a hardness of 1 on the Mohs scale.
Why glass is a good insulator?
Glass makes a good insulator for electrical systems because glass will not melt too easily. Glass is also a good insulator on a house because air cannot pass directly through the glass.
What makes something a good insulator?
Trapped air makes a good insulator.
What is the name of the mark a mineral makes?
Streak. The 6 properties of minerals are streak, hardness, crystal form, color, cleavage/fracture, and luster. Hope that can answer your question:)
