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What kind of mineral leaves a greenish-black streak and cannot be scratched by fluorite?
Pyrite
What mineral is softer than apatite?
The mineral that is softer than apatite is fluorite. On the Mohs scale of mineral hardness, apatite has a hardness of 5, while fluorite has a hardness of 4. This means that fluorite can be scratched by minerals with a hardness greater than 4, including apatite.
What is pink color nonmetalic and galssy luster softer than topaz quuartz scratches apatite harder than fluorite has clevage and is scratched by a steel file?
What is pink color nonmetalic and galssy luster softer than topaz quuartz scratches apatite harder than fluorite has clevage and is scratched by a steel file?
What would happen if you rubbed a piece of fluorite against a piece of feldspar?
If you rub a piece of fluorite against a piece of feldspar, you would likely observe that the fluorite leaves a streak on the feldspar due to its lower hardness on the Mohs scale. Fluorite has a hardness of 4, while feldspar ranges from 6 to 6.5, meaning feldspar is harder and would not be scratched by fluorite. The interaction may produce some fine dust from the fluorite, but it would not result in significant abrasion of the feldspar.
What rock has colourless chunk that breaks apart into cubes and has no lustre and is soft enough to be scratched by fluorite?
Calcite perhaps (although it does not form cubes).
Can fluorite be scratched by a steel nail?
Yes. A steel nail has a Mohs hardness greater than that of fluorite.
What would happen if you scratched a piece of fluorite against a piece of feldspar?
Fluorite is harder than feldspar, so scratching fluorite against feldspar would cause the fluorite to scratch the feldspar. This means the fluorite would leave a mark on the feldspar, showing that fluorite is harder than feldspar.
Which minerals on Mohs' hardness scale can be scratched by quartz?
Othoclase, apatite, fluorite, calcite, gypsum, and talc.
What mineral scratches calcite but it scratched by apatite?
The mineral that scratches calcite but is scratched by apatite is fluorite. Fluorite has a hardness of 4 on the Mohs scale, which allows it to scratch calcite (hardness 3), while apatite has a hardness of 5 and can scratch fluorite. Thus, the relationship between these minerals aligns with their respective positions on the Mohs hardness scale.
What kind of mineral leaves a greenish-black streak and cannot be scratched by fluorite?
Pyrite
What can scratch fluorite?
Fluorite is a relatively soft mineral with a Mohs hardness of 4, so it can be scratched by harder materials like quartz, topaz, and corundum. However, fluorite can scratch materials with a lower hardness, such as gypsum and calcite.
What mineral can be scratched with a steel knife or window glass?
apatite with a steel knife feldspar with window glass
What mineral would scratch apatite but not scratch fluorite?
The mineral that would scratch apatite but not scratch fluorite is quartz. Quartz has a hardness of 7 on the Mohs scale, while apatite has a hardness of 5 and fluorite has a hardness of 4. Therefore, quartz can scratch apatite but is too hard to be scratched by fluorite.
What minerals would scratch fluorite - talc quartz or calcite?
Fluorite with a Mohs hardness of 4 would be scratched by quartz (with a hardness of 7). Both calcite (Mohs hardness 3) and talc (Mohs hardness 1) are softer than fluorite.
What are 2 objects that will scratch fluorite?
Fluorite has a Mohs hardness of 4, meaning it can be scratched by objects with a hardness greater than that. Two common objects that can scratch fluorite are quartz, with a hardness of 7, and topaz, which has a hardness of 8. These minerals are significantly harder than fluorite and will easily leave scratches on its surface.
What two objects that will scratch Fluorite?
Fluorite has a hardness of 4 on the Mohs scale, meaning it can be scratched by objects that have a hardness greater than 4. Two common objects that can scratch fluorite are quartz (hardness 7) and topaz (hardness 8). These minerals are significantly harder than fluorite and can easily create scratches on its surface.
What mineral is softer than apatite?
The mineral that is softer than apatite is fluorite. On the Mohs scale of mineral hardness, apatite has a hardness of 5, while fluorite has a hardness of 4. This means that fluorite can be scratched by minerals with a hardness greater than 4, including apatite.
