black
The streak color of coal is usually brownish-black or black.
the streak color is Dark Green
Lithium is a soft, silvery metal with a metallic luster. Its streak color is white.
Copper typically has a streak color that appears reddish-brown. This streak color can be seen when copper is scratched on a streak plate to leave a mark.
The streak of alexandrite is usually white.
The streak color of coal is usually brownish-black or black.
It can vary from a dark grey to a black.
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.
The streak of Jade is white.
Perlite does not have a streak color because it is a volcanic glass that does not leave a streak on a streak plate.
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.
normally white but may streak other colors if the specimen is stained i dont give a duck
a streak a streak
its streak is white.
Streak
Apatite has a white streak.
biotite has a colorless streak