Most coal is black, or greyish black.
it silver but it does have a streak
white streak
The Streak Is White.
The streak of salt (halite) is white
Most coal is black, or greyish black.
It can vary from a dark grey to a black.
what is the streak of sedimentary rocks
Bituminous coal is described as:Diaphaneity (Transparency): OpaqueColour: BlackStreak: BlackCleavage: None ObservedSee PicturesBituminous Coal exists in the geological area known as The Pittsburgh Coal Seam-- an area extending from Western Pennsylvania, Western West Virginia, Ohio, Kentucky, and Indiana. Though mined since the days of Native American Indians, and heavily mined since 1800, it is estimated there is still enough coal in this large seam to last millions of years.
there is no name for the color, but there is the "streak" of a mineral, meaning the color of its streak.
The lack of a streak would indicate that the mineral is harder than the streak plate, or the color of the streak is the same as the color of the streak plate.
Diamonds Have No Streak AT All..
a streak a streak
its streak is white.
it silver but it does have a streak
Streak
Diamond will not leave a streak on a porcelain streak plate because diamond is harder than the streak plate. It will leave a scratch on the streak plate for the same reason.