it can be white or gray but the word is STREAK
The streak of the mineral is the mineral's powder color
Maybelline Mineral Powder products do a lot for one's face. Maybelline Mineral Powder products are makeup products that make skin clearer and smoother.
The color of a mineral's powder found by scratching the mineral on a white tile is referred to as the mineral's streak color.
By rubbing a mineral on porcelain to obtain powder, you are observing its streak. The streak is the color of the powder produced when the mineral is scraped across a hard, unglazed surface, such as porcelain. This property helps in identifying the mineral, as the streak color can be different from the mineral's external color.
The powder indicates the true color of the mineral and is an aid in mineral identification. That can also be called a streak.
The property of a mineral that shows the color of its powder is called streak. Streak is determined by rubbing the mineral against an unglazed porcelain plate to produce a colored powder. This color can sometimes be different from the color of the mineral itself.
Powder and color
Streak
When a mineral is ground into a powder, the color of the powder is called its streak color. This color may differ from the original color of the mineral due to factors such as impurities within the mineral, the presence of oxidation or alteration products, or differences in how light interacts with the fine particles in the powdered form.
The mineral with a silky luster that is used in baby powder is talc. Baby powder also contains a mixture of magnesium.
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 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.