Is an Elementary Particle
Is an Elementary Fermion
Make up larger particles like all Hadrons
All quarks have Spin 1/2
Have Color
No free quark has even been measured

Has
Confinement
The idea that quarks cannot exist outside of a Hadron.
Because the force between quarks increases rapidly with distance, trying to pull apart two quarks results in new particles being created from the new energy introduced to the system.
