Starfield Glass: Mirror and Starfield Glass: Dimensional Fracture are craftable despite not being researched.

Does that research say the researches have started or have not been started yet? There's a vanilla TC6 bug that unlocks all recipes from a research category the instant it's started.

No, they haven't been started (you can see in the 3rd picture it just has the starfield glass: rift). I don't even have the requirements (Mirror and Fracture research).

There are some issues with vanilla TC research requirements for recipes, but in this case it was just me forgetting to change the research key on the glass recipes (I'm guessing I copied the rift one).