Final answer:
The name of the dark-colored mica is biotite. It is a thin, flaky mineral that is typically dark brown to black in color. It can be found in igneous and metamorphic rocks.
Step-by-step explanation:
The name of the dark-colored mica is biotite.
Mica is a mineral that belongs to the phyllosilicate group and it comes in various colors. Biotite is a type of mica that is typically dark brown to black in color.
It can be found in igneous and metamorphic rocks, and it is characterized by its thin, flaky structure and perfect cleavage.