Officially Bexalite is a mineral that can be obtained by miners extracting from rocks on several moons in Star Citizen. This mineral harvested from worlds with no natural magnetic core, has found widespread use in electrical systems. 

But on BlueEyes's twitch channel Bexalite is a free way to get extra attention in the chat by highlighting your text. You can also use this to ask a question for Captain Blue Eyes. Or...

Let the Captain sing for you!

If you have collected more than 10.000 bexalite, you are able to request a song from the available list that the captain will sing for you!

Make sure you pick a song from the list if you want to be sure the captain CAN sing that song!

If you request a song that is not on the list, and he cannot sing your request he will choose a song himself to sing for you!