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Describe how to distinguish between a mineral with a hardness of 6 and one with a hardness of 4 using only a glass plate and a copper penny?
To distinguish between a mineral with a hardness of 6 and one with a hardness of 4, you can use the glass plate and the copper penny for comparison. First, scratch the mineral against the glass plate; if it scratches the glass, it has a hardness greater than 5. Then, use the copper penny to scratch the mineral; if the mineral scratches the penny, it has a hardness greater than 3. If it scratches the glass but not the penny, it has a hardness of 6; if it scratches the penny but not the glass, it has a hardness of 4.
What hardness dos a mineral have if it does not scratch glass but it scratches an iron nail?
A mineral that cannot scratch glass but can scratch an iron nail has a hardness between 5.5 and 6.5 on the Mohs hardness scale. Glass typically has a hardness of around 5.5, while iron nails generally have a hardness of about 4.5. Therefore, the mineral's hardness falls within this range, indicating it is harder than the nail but softer than glass.
What is the harness of a mineral if it scratches a penny but will not scratch glass?
Google "Mohs hardness scale". This is a relative hardness scale which compares one mineral's hardness to another. (It is between 3.5 and 5.5 on the Mohs hardness scale)
What mineral can scratch glass but can be scratched by steel file?
The mineral that can scratch glass but can be scratched by a steel file is quartz. Quartz has a hardness of 7 on the Mohs scale, allowing it to scratch glass, which typically has a hardness of around 5.5. However, a steel file, which has a hardness of about 6.5 to 7, can scratch quartz.
What mineral scratches fluorite but cannot be scratched by glass?
The mineral that scratches fluorite but cannot be scratched by glass is apatite. Apatite has a hardness of 5 on the Mohs scale, while fluorite has a hardness of 4, allowing apatite to scratch fluorite. Glass typically has a hardness of about 5.5, meaning it can scratch apatite, but apatite cannot be scratched by glass.
Describe how to distinguish between a mineral with a hardness of 6 and one with a hardness of 4 using only a glass plate and a copper penny?
To distinguish between a mineral with a hardness of 6 and one with a hardness of 4, you can use the glass plate and the copper penny for comparison. First, scratch the mineral against the glass plate; if it scratches the glass, it has a hardness greater than 5. Then, use the copper penny to scratch the mineral; if the mineral scratches the penny, it has a hardness greater than 3. If it scratches the glass but not the penny, it has a hardness of 6; if it scratches the penny but not the glass, it has a hardness of 4.
What is the hardness of an unknown mineral that scratches glass but will not scratch quartz?
The unknown mineral would have a hardness greater than 5.5 (the hardness of glass) but less than 7 (the hardness of quartz). Based on the Mohs Hardness Scale, the unknown mineral would likely have a hardness between 6 and 7.
What is the hardness of a mineral if it scratches a penny but will not scratch glass?
Between 3.5 and 5.5 on the Mohs scale of mineral hardness.
What hardness dos a mineral have if it does not scratch glass but it scratches an iron nail?
A mineral that cannot scratch glass but can scratch an iron nail has a hardness between 5.5 and 6.5 on the Mohs hardness scale. Glass typically has a hardness of around 5.5, while iron nails generally have a hardness of about 4.5. Therefore, the mineral's hardness falls within this range, indicating it is harder than the nail but softer than glass.
How is hardness tested?
Mineral hardness is tested on a glass plate or usually a finger nail.
What hardness does a mineral have if it does not scratch glass but scratches an iron nail?
The mineral would have a hardness between 5.5 and 6.5 on the Mohs scale. It cannot scratch glass (hardness of about 5.5) but can scratch an iron nail (hardness of about 4). This places it in the range of minerals like orthoclase feldspar or apatite.
What hardness does a mineral have if it scratched by glass but scratched an iron nail?
It would have to be 5.0 because glass has a hardness of 5.5 and an iron nail has the hardness of 4.5
What is the harness of a mineral if it scratches a penny but will not scratch glass?
Google "Mohs hardness scale". This is a relative hardness scale which compares one mineral's hardness to another. (It is between 3.5 and 5.5 on the Mohs hardness scale)
How is mineral hardness tested?
Mineral hardness is tested on a glass plate or usually a finger nail.
What hardness does a mineral have if it is scratched by glass but scratches an iron nail?
It would have to be 5.0 because glass has a hardness of 5.5 and an iron nail has the hardness of 4.5
Which mineral will scratch glass but will be scratched by a nail?
This mineral is likely quartz. Glass has a hardness level of around 5.5, while quartz has a hardness of 7. A nail, which is made of iron, generally has a hardness around 4.
How do you determine the hardness of a mineral?
The hardness of a mineral is determined by scratching it with materials of known hardness, such as a fingernail, a copper penny, a steel nail, or a piece of glass. The mineral is assigned a hardness value based on which material can scratch it. This is known as the Mohs scale of hardness.
