Elemental star for a mythology(gies) that I HAVE actually done things with.

Fire, Water, and Earth are the Primary Elements, Metal (Earth+Fire), Wood (Water+Earth), and Air (Fire+Water) are Secondary Elements. Secondary Elements sit between the two Primary Elements that compose them. Opposing Elements sit across from each other on the star. Following the Elements in chromatic (color) order makes a ∞ shape.

There are also Tertiary Elements, but those aren't as notable because they represent entropy and don't sit on the star. They are Dust (Earth+Air), Rust (Water+Metal), and Ash (Fire+Wood).

I also have individual images for each of the elements and a little blurb under the crest for what people born under the influence of these elements are supposed to be like (like in a zodiac), but I figure I'm already set up to spam the front page with stuff, and it doesn't need 8 similar submissions in a row...