Apatite
Sulfur is a relatively soft mineral, with a hardness of 2 on the Mohs scale. It can be scratched by minerals with a higher hardness, such as calcite (3 on the Mohs scale) and fluorite (4 on the Mohs scale).
Oh, dude, like, a copper coin can totally scratch minerals with a hardness of 3 or lower on the Mohs scale. So, you know, minerals like calcite, gypsum, and talc better watch out for that shiny penny! But, like, don't go around scratching random rocks with your spare change, okay?
Calcite is a mineral that reacts with acid, specifically hydrochloric acid, only when it is scratched. This test is known as the "acid test" and is commonly used in mineral identification. When calcite is scratched, fresh surfaces are exposed, allowing the acid to react with the mineral.
Yes. But only soft ones such as talc (solid form of chalk and baby powder). Generally only minerals below 2 on the hardness scale.
Fluoride is an anion found in many compounds. It does not have a streak because streak is a property of minerals when they are scratched against a rough surface, leaving a colored trail.
Minerals that can be scratched by a knife typically have a Mohs hardness of less than 5.5. Common examples include talc, gypsum, and calcite, which are softer minerals. A knife, generally made of hardened steel, can scratch these softer minerals, while harder minerals like quartz or diamond cannot be scratched by a knife.
apatite with a steel knife feldspar with window glass
Minerals that can be scratched with a knife blade but not with a copper coin typically have a hardness between 3.5 and 5 on the Mohs scale. For instance, minerals like calcite (hardness 3) can be scratched by a copper coin but not by a knife blade, while minerals like fluorite (hardness 4) can be scratched by a knife but not by a copper coin. Therefore, minerals like fluorite would fit your criteria.
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.
Mineral that can be scratched with a knife blade or a window glass is gypsum.
science
nickel
soapstone
Yes magnatite does and it can be scratched by a nail Jk!
No mineral can scratch diamond.
Hardness
bob fred and bobby