The mark is called a streak and the color depends on what mineral you are testing.
Streak is the color of a crushed mineral's powder. The color of a mineral's powder may differ from the actual color of the mineral. This property can be useful for mineral identification.Almost every mineral has an inherent streak color, no matter what color the actual mineral is.
The color of a mineral in powdered form is called the mineral's Streak
The color of the powdered form of a mineral is called
Because color can vary based on the purity of the mineral.
it depends on what mineral you are observing.
it depends.
the mineral's "color"
It depends on what you mean by mineral. A mineral is a 'wide range' term. The only one I know of is Alexandrite, but that is a color-changing mineral, not exactly blue all of the time.
The mark is called a streak and the color depends on what mineral you are testing.
No. It can vary from the visible color of the mineral and, since visible color of them ineral is not a reliable indicator of type, it is important to learn to use streak, (along with other factors), to correctly identify a mineral.
It depends on the miniral you are scratching
it is not a good idea to identify a rock or mineral by it's color because the color of the rock can change and when looking at facts on that rock/mineral it may not say the color that you have. that is why there are other ways as well as color. but don't get me wrong because some things can be identified by the color so it really depends.
A Stalactite is formed from seepage. The colour depends on which mineral is dissolved in the liquid.
Streak is the color of a crushed mineral's powder. The color of a mineral's powder may differ from the actual color of the mineral. This property can be useful for mineral identification.Almost every mineral has an inherent streak color, no matter what color the actual mineral is.
The streak of the mineral is the mineral's powder color
The color of schist depends on its mineral composition. It can be gray, yellow, light or dark green, brown, or even black.