You might be looking at this flat 2D image on the page and thinking “it’s beautiful!” (I agree!), but keep in mind, aura colours are three-dimensional, moving, and experienced by the auric practitioner in a multi-sensory manner. A specific aura colour can be beautiful in one aura or situation, but quite ugly or toxic in another. You simply can’t capture the range of expression or the sensory detail in a flat 2D image! Neither can I find one name to describe each colour that adequately sums up it’s entire character, both positive and negative.
In its most positive form, this emerald green colour is like a dense forest of greenery. When it becomes unhealthy, it can take on a green-black slimy sheen, looking more like a nest of writhing snakes, or oil on water at the bottom of a dark well. The darker forms of this colour can have an acrid or unpleasant charcoal taste, like something burned that is also foul.
When I find this colour in the aura during a healing, it often appears as tangled energy lines in the heart chakra, or in the aura space between the client’s heart chakra and that of someone they love (and sometimes hate!). My job as the healer is to untangle the lines and bring the client’s awareness to the unhealthy relationship dynamic they are caught up in, so that they can begin to overcome it. The untangled energy lines makes this work of self-change easier for the client to accomplish, by providing temporary clarity, but they will re-tangle themselves eventually if the client doesn’t work on changing their behaviours. It’s a bit like going to a masseur: the massage therapist can massage out the knots in your muscles, but the knots will keep coming back if you don’t address stress, posture and general self-care.