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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.
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What mineral cannot be scratched by another mineral?
A diamond. Actually, a diamond can be scratched my other minerals.
Can fluorite be scratched by a steel nail?
Yes. A steel nail has a Mohs hardness greater than that of fluorite.
What mineral is hard enough to scratch calcite but no hard enough to scratch amphibole?
Fluorite is a mineral that is hard enough to scratch calcite, which has a hardness of 3 on the Mohs scale, as fluorite has a hardness of 4. However, fluorite cannot scratch amphibole, which typically has a hardness ranging from 5 to 6. Thus, fluorite fits the criteria of being harder than calcite but softer than amphibole.
A mineral can be scratched by a brass washer but cannot be scratched by a copper coin.is a test of what?
This scenario tests the hardness of the mineral using the Mohs scale of hardness. Since the mineral can be scratched by a brass washer but not by a copper coin, it indicates that the mineral has a hardness greater than that of copper (which has a Mohs hardness of 3) but less than that of brass, which typically has a hardness around 3 to 4. This allows for an assessment of the mineral's relative hardness compared to common materials.
What mineral has no clevage and cannot be scratched with a steel file?
The mineral that has no cleavage and cannot be scratched with a steel file is typically quartz. Quartz is known for its hardness, ranking 7 on the Mohs scale, which means it can only be scratched by harder materials. Its lack of cleavage results in conchoidal fractures, giving it a distinctive break pattern. Other minerals with similar characteristics may include certain varieties of garnet or tourmaline, but quartz is the most commonly referenced.
What kind of mineral leaves a greenish-black streak and cannot be scratched by fluorite?
Pyrite
What mineral cannot be scratched by another mineral?
A diamond. Actually, a diamond can be scratched my other minerals.
Can fluorite be scratched by a steel nail?
Yes. A steel nail has a Mohs hardness greater than that of fluorite.
What mineral can only be scratched by one mineral?
Diamond is the hardest mineral and can only be scratched by another diamond.
Is fluorite harder than calcite?
Yes, fluorite is harder than calcite. Fluorite has a hardness of 4 on the Mohs scale, while calcite has a hardness of 3. This means that fluorite can scratch calcite, but calcite cannot scratch fluorite.
What mineral is hard enough to scratch calcite but no hard enough to scratch amphibole?
Fluorite is a mineral that is hard enough to scratch calcite, which has a hardness of 3 on the Mohs scale, as fluorite has a hardness of 4. However, fluorite cannot scratch amphibole, which typically has a hardness ranging from 5 to 6. Thus, fluorite fits the criteria of being harder than calcite but softer than amphibole.
What minerals can a steel knife scratch?
A steel knife can scratch minerals with a hardness lower than that of steel, such as gypsum, calcite, fluorite, and talc. Minerals like quartz, topaz, and corundum are harder than steel and cannot be easily scratched by a steel knife.
Which mineral ranked the highest hardness?
A diamond is the hardest mineral. A diamond can scratch all other minerals or rocks and cannot be scratched by another mineral or rock except another diamond.
What mineral cannot be scratched by anything but quartz?
There is none because diamond is at the top of the scale so it can scratch anything.
Which mineral cannot scratch any mineral by itself?
Talc is the mineral that cannot scratch any mineral by itself. It has a Mohs hardness of 1, making it the softest mineral on the Mohs scale, which means it can be easily scratched by all other minerals.
What mineral can scratch itself but no other mineral can scratch it?
A diamond is the only material that cannot be scratched by any other than itself.
What mineral has no clevage and cannot be scratched with a steel file?
The mineral that has no cleavage and cannot be scratched with a steel file is typically quartz. Quartz is known for its hardness, ranking 7 on the Mohs scale, which means it can only be scratched by harder materials. Its lack of cleavage results in conchoidal fractures, giving it a distinctive break pattern. Other minerals with similar characteristics may include certain varieties of garnet or tourmaline, but quartz is the most commonly referenced.
