Answer:
Colloid
Explanation
This is a mixture containing a microscopically dispersed substance suspended in another substance.
The microscopically dispersed substance can be soluble or insoluble.
Colloids do not settle or it takes them a very long time to settle.
There are colloids that are translucent like the one in the beaker. This is due to light scattering by the particles also known as the Tyndall effect.
Example of colloids include milk, ink and Gel