I am guessing you do K12 online schooling and the answer is a streak.
Streak
The mineral with a silky luster that is used in baby powder is talc. Baby powder also contains a mixture of magnesium.
StreakColor of the mineral when it is powdered.Grind a small amount of a mineral into a powder on a porcelain streak plate and determine the color of the powder.
a dry powder
Different minerals have different colors, actually.
When you rub a mineral on a tile it is called streaking a mineral. The line that is left is called the streak, and the tile itself is called a streaking plate.
The streak test is used to determine the color of the powder left behind when a mineral is scraped along a white ceramic plate. This color is often different from the color of the mineral itself and can help identify the mineral.
The mineral property identified by the color of the powder left behind when a mineral is rubbed across a surface is called the mineral's streak.
The color of the powder left behind when a mineral is scratched is known as the mineral's streak color. It can sometimes be different from the color of the mineral itself, based on the mineral's chemical composition.
Color is what you observe when you look at a mineral. Streak is the color of the mineral when in a fine powder form. This can be observed by drawing a sample of the mineral over an unglazed porcelain tile and noting the color of the line left on the tile.
The color of the powder left by a mineral when scratched across a special plate is called the streak color. This color may differ from the actual color of the mineral itself and is a helpful characteristic in mineral identification.
The characteristic used to determine the color of a mineral's powder is known as its "streak color." This is achieved by scratching the mineral against an unglazed porcelain plate to observe the color of the powdered residue left behind. Streak color can sometimes differ from the visible color of the mineral.
there is no name for the color, but there is the "streak" of a mineral, meaning the color of its streak.
It is called the streak, and refers to the color of the powdered mineral that is left on a ceramic streak plate after the mineral specimen has been drawn across it. It may be different than the color of the observed specimen and is representative of the true color of a mineral that does not include impurities or traces of other minerals, or has been irradiated or heated.
The powder left behind on a streak plate is called a streak. It is produced by scraping a mineral sample across the plate to reveal its color and texture. This streak can be compared to a mineral's known streak color to help with identification.
The streak of the mineral is the mineral's powder color
Mineral make-up has recently been a big trend for women. Maybelline has taken to this trend and developed Mineral Power. Mineral Power is Maybellines line of powder foundation.