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apatite with a steel knife

feldspar with window glass

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13y ago

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What mineral can be scratched with a knife blade or a window glass?

Mineral that can be scratched with a knife blade or a window glass is gypsum.


What other mineral can scratch a steel knife or window glass?

Diamond is the hardest mineral that can scratch a steel knife or window glass.


What mineral will scratch with a window glass or a knife blade?

A mineral that will scratch with a window glass but not with a knife blade is a mineral with a hardness between 5.5 and 6.5 on the Mohs scale, such as orthoclase or peridot.


Can the mineral azurite scratch glass?

apatite can not scratch glass. it is considered number 5 1/2 on the Mohs Scale Of Hardness. Apatite is number 5 on the scale and can only scratch itself and all of the minerals lower on the scale.


What mineral can be scratched by a steel knife but not a copper penny?

Copper. Copper has a hardness of 2.5-3 on the Mohs scale, while a steel knife generally has a hardness of around 5.5 - 6.5. This means that a steel knife can scratch copper, but a copper penny cannot scratch a steel knife.


Is quarts mineral?

Quartz is a mineral. It has a hardness of 7 on Mohs Scale of Hardness; thus, it scratches glass but it is not scratched by a masonry nail or knife blade. It does not have any cleavage, it only fractures, and it can have conchoidal fracture (similar to glass). It is also a light-colored nonmetallic mineral with a greasy luster. It can be colorless, white, gray, or other colors. Other distinctive mineral proprieties include its hexagonal prisms, pyramidal structure, and that it can be transparent or translucent.


Is a quart a mineral?

Quartz is a mineral. It has a hardness of 7 on Mohs Scale of Hardness; thus, it scratches glass but it is not scratched by a masonry nail or knife blade. It does not have any cleavage, it only fractures, and it can have conchoidal fracture (similar to glass). It is also a light-colored nonmetallic mineral with a greasy luster. It can be colorless, white, gray, or other colors. Other distinctive mineral proprieties include its hexagonal prisms, pyramidal structure, and that it can be transparent or translucent.


What test can help distinguisg gypsum and quartz?

The scratch test can help distinguish gypsum from quartz. Gypsum is a soft mineral, so it can be easily scratched with a fingernail or with a knife blade. Quartz, on the other hand, is much harder and cannot be scratched with a knife blade.


How hard is biotite?

it is not hard because you can split the mineral


Is the halite soft or hard?

Halite is hard. It can be scratched by a steel file and a knife with difficulty


If a mineral can be scratched by a fingernail but not by a pocket knife what does that tell us about the mineral?

It would have a Mohs hardness somewhere between 2.5 and 5.5.


If a knife blade scratches the surface of a mineral that mineral is considered hard?

Most knives have a rockwell hardness of 54-62. this is for metals. minerals are considered ceramics and therefore should have more hardness. It really depends ont he pressure applied. With enogh pressure any knife can scratch any mineral.