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2.5
Flavio Mitchell
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What is the hardness of biotite mica?
Biotite mica has a Mohs hardness of 2.5-3.0.
Is Muscovite mica hardness?
2.8-3.2 on Moh's hardness scale
Does the mica mineral break easily?
On Moh's scale Mica group minerals ranges 2.5 to 3.0 in hardness.
What is micas luster?
Mica's luster is translucent, transparent in thin sheets
Which mineral has a hardness of 2.5 3 and makes a good electrical insulator?
Biotite mica
Which mineral has a hardness of 2.5-3 and makes a good electrical insulator?
Biotite mica
What is micas density?
Mica is a silicate sheet often used for its properties in the electronics field. Mica's density is 2883 micrograms per cubic millimeter.
What mineral breaks into small sheets?
The original options for this question were cleavage, luster and hardness. The answer would be cleavage.
What is the rock hardness of obsidean?
Although technically it's not a mineral (but rather a glassy form of rhyolite containing predominantly orthoclase, quartz, and mica), obsidian would fall into the 5 - 5.5 range on the Mohs scale of hardness.
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 micas hardness?
Over 40 minerals belong to the mica group of minerals, which are quite soft, ranging from 2 to 3 on the Mohs Scale.
How do you identify the mineral mica?
Mica appears as sheety, shiny, plated crystals, sometimes displaying as 'books', where each cleavage plane is easily separated by a knife blade. Mica is also on the low end of the Mohs hardness scale, at 2-2.5, so you can probably scratch it with your fingernail. Mica is often found in association with granite, or granite pegmatites.
