A development in Western practices dating back to the 1940s is to associate each one of the seven chakras to a given colour and a corresponding crystal. Source: Internet
A result of energetic imbalance among the chakras is an almost continuous feeling of dissatisfaction. Source: Internet
According to the Niruttaratantra, chakras in the sense of assemblies are of 5 types. Source: Internet
Elsevier Health Sciences, 2001, p. 12. These 21 are further grouped into ten bilateral minor chakras that correspond to the foot, hand, knee, elbow, groin, clavicle, navel, shoulder and ear. Source: Internet
Also, different physical structures are considered chakras. Source: Internet
Below is a description of the seven chakras, with various associations. Source: Internet