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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 else can I help you with?
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 is soft and metallic?
The mineral that is soft and metallic is talc. Talc is known for its greasy feel and can be easily scratched with a fingernail, making it one of the softer minerals on the Mohs scale.
Are metallic and glassy two types of cleavage?
No, metallic and glassy are not types of cleavage. Metallic refers to a type of luster in minerals, while glassy describes the appearance of a mineral's surface. Cleavage refers to the way a mineral breaks along planes of weakness.
What can scratch gypsum but can be scratched by all other minerals?
Talc can scratch gypsum, but can be scratched by all other minerals. Talc is the softest mineral on the Mohs scale, with a hardness of 1, making it easily scratched by minerals with higher hardness values. Gypsum has a Mohs hardness of 2, so talc can leave a mark on it.
Which would be the hardness of a mineral that can be scratched by a penny but not a fingernail?
A mineral that can be scratched by a penny (which has a hardness of about 3.5 on the Mohs scale) but not by a fingernail (which has a hardness of about 2.5 to 3) would have a hardness between 3 and 3.5. This means the mineral's hardness is likely around 3.2 to 3.4, indicating it is softer than the penny but harder than a fingernail. Examples of minerals that fit this description could include calcite or gypsum, depending on their specific characteristics.
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.
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 is soft and metallic?
The mineral that is soft and metallic is talc. Talc is known for its greasy feel and can be easily scratched with a fingernail, making it one of the softer minerals on the Mohs scale.
What three minerals can be scratched by a fingernail?
bob fred and bobby
What minerals are soft enough to be scratched by a fingernail?
Minerals that are soft enough to be scratched by a fingernail include gypsum (2 on the Mohs scale), talc (1), and calcite (3).
What mineral can be scratched by a penny but not a fingernail?
Copper sulfide minerals, such as chalcocite and bornite, can be scratched by a penny but not a fingernail. This is due to the Mohs hardness scale, where these minerals have a hardness greater than a penny (3.5) but less than a fingernail (2.5).
What are the two minerals that you can scratch with a fingernail?
Talc and gypsum are two minerals that can be scratched with a fingernail due to their low hardness on the Mohs scale.
What rock is soft enough to be scratched by a nail?
Rocks that mostly contain minerals like mica, gypsum, and talc can be scratched by a fingernail.
Are metallic and glassy two types of cleavage?
No, metallic and glassy are not types of cleavage. Metallic refers to a type of luster in minerals, while glassy describes the appearance of a mineral's surface. Cleavage refers to the way a mineral breaks along planes of weakness.
Can a fingernail scratch some minerals?
Yes. But only soft ones such as talc (solid form of chalk and baby powder). Generally only minerals below 2 on the hardness scale.
What mineral you can scratch with your fingernail?
The most commonly known mineral that can be scratched with a fingernail is talc.
What are 2 minerals that can be scratched by a fingernail?
Quartz (Mohs 7.0) and diamond (Mohs 10,0) are two of many minerals that are harder than copper (Mohs 2.5-3.0).
