Crystalic is a term which has multiple meanings.
The first is a xenic alignment to crystals.
The second is an aesthetigender that relates to crystals and gems, but unlike crystalcoric, the gender is specific to the aesthetic of crystals and gems and how it impacts one's gender, and can be used by anyone.
History and Flag
The first definition and flag was created on or before July 17th, 2018, and is credited to Tumblr user sashafoxx333.[1]
The second definition may have been coined by Tumblr user StaticWren on March 23rd, 2021. However, the page has been deleted and no archive exists. The flag was likely created at the same time.[2]