User blog comment:Hidden Scorpius XI/Character Emblems/@comment-4010415-20141016014545

Ruby: Also note that Monty described the difference between Ruby's and Adam's symbols as being Scatter (Ruby) and Wilt (Adam). Ruby's symbol is a scattering rose, and Adam's is a wilting rose. There's also the fact that the scatter rose symbol was seen on Summer Rose's grave, so it might also be Summer's symbol.

Blake: Blake's symbol is most likely supposed to be a nightshade flower. In really old concept art, it had more of a cat paw shape, but they changed it into the flower-like symbol it is now.

Yang: The thing about her hair storing the power was said by Lindsay to be sort of like the tale of Samson, whose power came from his hair. When his hair was cut, he lost his power, hence Yang being so protective of her hair.

Things may indeed get complicated with other characters, to be honest.

Pyrrha's symbol is a spear, but her semblance is magnetism.

I think the emblems have varying meanings and origins. We know for sure that Ruby's rose, Weiss' snowflake, and Jaune's rainbow (which apparently isn't his true emblem) are all family emblems handed down to them, but we don't know for sure about any of the other characters' emblems.

Pyrrha's emblem could possibly indicate that she comes from a family of spear wielders. Nora's could indicate that she comes from a family of hammer wielders.