white...
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Black
Basalt has a reddish brown streak. It is a dark and dense igneous rock of a minor lava flow.
Mica has a white streak.
black/silver
Onyx's streak is white.
True Onyx is black.
white
black black
Black
Onyx and coal are synonymous with black.
It is most likely going to have a greenish streak. It may also have a greenish black streak.
Most coal is black, or greyish black.
Basalt has a reddish brown streak. It is a dark and dense igneous rock of a minor lava flow.
It's color is a bluish black
Magnetite.Has metallic luster, silver color, black streak, and contains (Fe) Iron.
Mica has a white streak.