Black to a brownish black
It leaves a white streak.
When you say Barium it refers to element Ba, Barium has a Mineral called Baryte BaSO4, which have white streak!
green
White.
yellow
the streak color is Dark Green
clear, because it's metal. from livingston, NJ
Perlite does not have a streak color because it is a volcanic glass that does not leave a streak on a streak plate.
Barium compounds are commonly used in fireworks to produce a bright green color. Barium nitrate and barium chlorate are two examples of barium compounds that are utilized to achieve the desired green color in fireworks.
The streak color of calcite is white.
The streak color of calcite is white.