Growth lines or cracked pearls

Hi everyone! I am new to the forum! So yesterday i dropped my pink pearl bracelet (AAA) on a wooden floor while taking it off. I noticed one of the pearls has white spider like structures all over it, under flashlight. And on one side of it it looks like two spiders beside each other. Only one line is visible in daylight, the rest is visible only under flashlight. The pearl hasn’t lost it’s shine. I can’t take a proper picture, because of my phone. I hope my description makes up for it. So have you ever dropped your pearls? Are pearls sturdy? Are those growth lines or cracks? Thank you for your time and sorry for my bad grammar and spelling, english is not my first language.

I'm not seeing whatever you are seeing, but yes, I have dropped my pearls and they are fine. They have never cracked from a fall.
Your FWP are solid nacre and very sturdy. A wooden floor is also more forgiving than, say, concrete, as far as risk of scratching.
I think the pearls are ok.

Thank you so much for your answer!

I don't see anything in the photos, either. I've dropped my pearls on tile floors and they're fine.

Thank you! I was really worried since those are my first pearls and i wanna take great care of them!

I've intentionally dropped pearls on different surfaces and from different heights (I used to conduct torture tests to understand pearls better) and I can say that wood floors are very nice on pearls...marble floors not that much!
I would say your pearls are good!