What is the closest thing to a kyber crystal?

Rubies
Rubies Are the Earth Equivalent of Star Wars Kyber Crystals.

Can you bleed a white kyber crystal?

Any kyber crystal could be bled by a Force user, including one’s own, for example, if they were a former light side practitioner and kept their lightsaber. It was possible to “heal” the effects of bleeding on a kyber crystal, by using the light side of the Force, thus changing the crystal’s color again.

Can you reprogram a kyber crystal?

A kyber crystal could be reprogrammed to unlock Snoke’s voice from the rare black kyber crystal or activate a ‘secret’ orange crystal chamber illumination or teal crystal chamber illumination (orange and teal are unreleased colors).

Can Lightsabers cut through shields?

One, in the Marvel universe, the other in the Star Wars universe. Per Hamill’s explanation, the lightsaber would be able to cut through Captain America’s vibranium shield, and probably with ease. That includes an actual scientist who sided with Hamill, confirming a lightsaber should be able to cut through it.

Do you need the force to use a lightsaber?

There’s no innate skill with the Force required to turn the lightsaber on or off, but lightsaber training is an integral element of Jedi training. But Han Solo once also held a lightsaber, and Luke Skywalker began fighting with his long before he finished his Jedi training.

Could you use an Infinity Stone as a kyber crystal?

For one, an Infinity Stone isn’t a Kyber crystal, so it wouldn’t function in a lightsaber, but that isn’t what the question is asking. It’s asking what would happen if you succesfully used an Infinity Stone in a lightsaber.

Can a kyber crystal change color?

More reading if you’re curious! No, they change color depending on the physical composition of the Kyber crystal. Jedi had blue and green lightsabers because those were the most common colors to be found in the mines of Ilum and Jedha, where they acquired most of their crystals.