Slate grey, of course
streak
A rock with more silica is likely to be lighter in weight and have a lighter color compared to a rock with less silica. Silica is a lower density mineral compared to other common rock-forming minerals, which can influence the overall density and color of the rock.
Mafic
Syenite rock is typically light to medium gray in color. It often contains minerals such as feldspar, hornblende, and quartz, which can give it a speckled or streaked appearance.
Any type of color it depends on the facture of the rock..................
Slate grey, of course
The color of sedimentary rock changes during metamorphism due to minerals. New minerals introduced can change the color of the rock.
the color of diabase rock is white...
An igneous rock's color is mainly determined by its silica content.
To find the streak of a rock, you can rub the rock against an unglazed white porcelain tile to observe the color of the powder left behind. The color of the streak can help identify the minerals present in the rock.
Color rock.
streak
An igneous rock with a high level of silica will have a light color.
the color is purple pink and tan
Dark colored igneous rock
The Rock's favorite color is Dark Green