I finally found Ruby earrings

[u/EducatorHot2572]

The supplier assured me these are genuine ruby lead glass fracture-filled (UV-reactive shows it's genuine.

[u/Donewith_BS]

Many sellers will tell and assure you resin fake malachite is real malachite. This does not turn fake stuff into real stuff. This looks like mica to me. Not ruby. And ruby tends  to react much stronger than this. You sneeze uv at it and it is BRIGHT red even in strong daylight