/vt/ - Virtual Youtubers

Attempting to figure out what's going on with the Ruzader's tails since the keratin bit has been throwing me off ever since I saw it. I'm guessing that the tails are some sort of gem/collagen composite with a keratin shell to absorb surface damage and prevent their tails from fracturing.
Many gemstones are the crystalline forms of ceramics, so I'm presuming that Ruzaders can somehow grind up gemstones in their stomach in order to incorporate them into their bodies. Bones are also ceramic/collagen composites, so Ruzaders could be utilising their gems for the ceramic portion instead of hydroxyapetite. Their skeletons could also be made of gems!
The ceramic base material also creates a pathway for their tails to function as axes. The actual blade portion may be some sort of keratin/gemstone composite, though I'm not sure if it'd be gemstone in a keratin matrix or some sort of sandwich structure. The former is probably what Ruze had in mind, as I'm guessing the tail is essentially a MASSIVE horn based on a quick glance at their internal structures. (I feel silly not looking up horns until now, as the keratin shell and bony core is exactly what I theorized initially. Oops, reinventing the wheel.)