I found gypsum mineral in the creative mode. It seems to be a rocklayer mineral, but it will not be generated naturally. What will it do in the future?
I found a very good mod: ManaMetal 3, which adds a lot of things, especially a lot of metal materials, can be added to the GT6 materials. And that new dimension can also add miniature portal.
Also, AbyssalCraft’s 4 dimensional miniature portals can be added and opened with their corresponding keys.