Aeris (previously known as Copa and Coer) is one of the base metals from the alloy alignment system based on copper. It represents a gender that is, to some degree, non-binary in nature. It is described as being neither masculine or feminine but is not a neutral element (zin) or a lack of element (tian). How one expresses or experiences being non-binary is defined by them. An aeris individual can have any alignment or presentation.
History
Aeris was originally coined on December 1, 2018 by Hail, the original owner of the Tumblr blog lgbt-alchemy. At the time it was known as Copa and the plural form was Copen. On December 19, 2019 the alloy alignment system was reworked by Tired, the new owner of the blog[1]. In this rework the name of the term was changed to Coer. Later, on October 10th 2020, Tired changed the name again to Aeris.[1]
The flag is based on the color of copper, and the symbol used is the alchemical symbol for Venus. It is the same as the female symbol, however this is entirely unrelated, as the symbol was historically used to represent copper in alchemy.