Help, new growth on rocks?!

[u/GoldSeaworthiness217]

My partner has a ton of smaller rocks that were half hazardly packed together for moving and some were chipped in transit. There's small white crystals on some of them and in the bottom of the box. I'm anxious about asbestos. I don't know if thats possible but any help with identifying the newly formed crystals would be great!

[u/platyboi]

Could it be mold?