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Can graphite be scratched by a fingernail?
Yes, graphite is a relatively soft mineral with a hardness of 1-2 on the Mohs scale. This means it can be easily scratched by materials with a higher hardness, such as a fingernail, which typically has a hardness of around 2.5.
Which mineral has a metallic luster is gray and can be scratched with a fingernail?
The mineral you are describing is likely graphite. Graphite has a metallic luster and appears gray in color. It is soft enough to be scratched with a fingernail, which distinguishes it from many other minerals. This characteristic makes graphite an important material in applications such as pencils and lubricants.
Can a graphite be scratch by a penny?
No, graphite cannot be scratched by a penny. Graphite has a hardness of about 1 to 2 on the Mohs scale, while a penny, made primarily of copper, has a hardness of around 3.5. Therefore, the penny is harder than graphite and can scratch it, not the other way around.
Which minerals can be easily scratched by a fingernail has cleavage a metallic luster and has a black streak?
Well you see, it's pretty simple. If a fingernail has a hardness of 2.5, and the question is asking what mineral can easily be scratched by a fingernail. Well then it is Graphite. It has a less hardness than your fingernails.
What is the chemical reactivity of graphite?
Graphite has an extremely low reactivity. Graphite can react with oxygen and sulfuric acid.
What mineral that has a nonmetallic luster and is black it can also be scratched with a fingernail what is it?
That could be graphite, which is a natural allotrope of the element carbon.
Can graphite be scratched by a fingernail?
Yes, graphite is a relatively soft mineral with a hardness of 1-2 on the Mohs scale. This means it can be easily scratched by materials with a higher hardness, such as a fingernail, which typically has a hardness of around 2.5.
Can graphite be scratched by a nail?
Yes, graphite can be scratched by a nail. Graphite has a relatively low hardness on the Mohs scale, rating around 1 to 2, which makes it softer than many materials, including the steel used in nails. This means that a nail can easily leave scratches on the surface of graphite.
Which mineral can be esily scratched by a fingernail has cleavage a metallic luster and has a black streak?
The mineral that fits this description is graphite. Graphite is very soft and can be easily scratched by a fingernail. It has a metallic luster and a black streak.
Which mineral has a metallic luster is gray and can be scratched with a fingernail?
The mineral you are describing is likely graphite. Graphite has a metallic luster and appears gray in color. It is soft enough to be scratched with a fingernail, which distinguishes it from many other minerals. This characteristic makes graphite an important material in applications such as pencils and lubricants.
What mineral has nonmetallic luster is black and can be scratched by a fingernail?
Magnatite is the mineral that has a nonmatallic luster, is black, and can be scratched by a fingernail.
How do you tell graphite from talc?
Graphite is a dark, shiny mineral with a greasy feel and leaves a mark on paper. Talc is a soft mineral that feels powdery and leaves a white mark when scratched. Additionally, talc is not as shiny as graphite.
What will scratch serpentine and what does not scratch it?
The Mohs hardness of serpentine is 2,5-3; it a soft mineral. Not scrached by a graphite pen; scratched by fingernail, copper etc.
Which mineral can be easily scratched by a fingernail has a cleavage metallic luster and has a black streak?
Well you see, it's pretty simple. If a fingernail has a hardness of 2.5, and the question is asking what mineral can easily be scratched by a fingernail. Well then it is Graphite. It has a less hardness than your fingernails.
Which minerals can be easily scratched by a fingernail has cleavage a metallic luster and has a black streak?
Well you see, it's pretty simple. If a fingernail has a hardness of 2.5, and the question is asking what mineral can easily be scratched by a fingernail. Well then it is Graphite. It has a less hardness than your fingernails.
Which mineral can be easily scratched by a fingernail has cleavage a metallic luster and has a black streak?
azurite is one of the minerals that has a light blue streak.
How does lead make a pencil write?
The core of a pencil (used to be actual poisonous lead, now is made of graphite) is soft enough that it can deposit a layer of material when subject to friction (AKA "scratched").
