what is the color of the powder called that a mineral leaves when scratched across a special plate
The color of the mineral powder that is left behind when a mineral is scraped across a surface is called the streak. This is one of the identifying properties of a mineral.
Scratch
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A mineral's resistance to being scratched is known as it's hardness. You can determine hardness by scratching it with another material whose hardness is already known. If it can be scratched, then the hardness is lower. If the unknown leaves a scratch on the known material, then its hardness is higher.
talc
Which mineral leaves a green-black powder when rubbed against an unglazed porcelain plate?
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Pyrite
A mineral's resistance to being scratched is known as it's hardness. You can determine hardness by scratching it with another material whose hardness is already known. If it can be scratched, then the hardness is lower. If the unknown leaves a scratch on the known material, then its hardness is higher.
Streak is the color of the finely powdered mineral when rubbed across a plate. Streak is one of the physical properties of minerals used to identify which specific mineral it is. Some minerals leave a completely different color streak than the original color of the whole mineral.
talc
The mineral Quartz leaves a colorless streak.
Which mineral leaves a green-black powder when rubbed against an unglazed porcelain plate?
The color of the powdered form of a mineral is called
special leaves used for
diamond