How to achieve this effect on mobile

I'd like to achieve this kind of effect in my ARKit mobile app.

I thought maybe it's an animated sprite sheet type effect, or maybe a particle effect or maybe geometry with shading effect. But I'm not sure so I don't want to go down the wrong path.

The animation of this orb and is what I'm after (camera is rotating so the orb moves around in the scene, so ignore that):
https://www.dropbox.com/s/aizp2st0vokn09k/RPReplay_Final1642734178.mov

Here's a still image of the orb:


Any suggestions on where to start I'd appreciate it.

Thanks!!

 

To whatever extent it may help I found this showing how to do edge effects.

 

Don't let this stop you from trying stuff.

It looks to me as if it could be a couple of meshes, a particle system or two, and some material / custom shader work.

Break it down into parts. Inner sphere, outer sphere, texture/material, the glowy mist, etc.

 

Thanks to you both of you for your help. I think "doing" is probably gonna teach. me the most. I tried animated sprite and it didn't seem correct exactly. I tried a particle system effect and it was definitely very close. I wasn't sure if there are transparent meshes or not, for the orb, but I'll try that next.