It is difficult to see as it only contains some slight yellowish pixel difference compared to the normal End Stone. Grab some in Creative mode and compare it, is my suggestion, so you may know what you're looking for. But, generally just look for 2-6 ore floating by itself in space near the asteroids that looks almost like End Stone, and it should be Sheldonite. It definitely generates, I tested in v7 Mindcrack and found it on around half the Asteroids and I don't think it changed in v8. BTW I checked fully through the main body of several asteroids and didn't find any... it seems to generate only freefloating in space. But if you generated your End in a different GregTech version it might be different. I can test tonight in v8 and see, I will post some screenshots if that is helpful.
BTW, the Electric Jetpack won't reach all the Asteroids, as some generate at or above 185 height limit of the Electric Jetpack. You need the fuel version Jetpack to reach these.
And the other asteroid ores are almost useless, but might have some future uses...
BTW, the Electric Jetpack won't reach all the Asteroids, as some generate at or above 185 height limit of the Electric Jetpack. You need the fuel version Jetpack to reach these.
And the other asteroid ores are almost useless, but might have some future uses...
I tried to find some Sheldonite in my test world using a jet pack today specifically looking on asteroids. I did not have any luck. I did find lots of the other asteroid ores however.