So, this is kind of interesting...
I'm watching an IGN video about zelda, and I noticed the description of the blue chuchu jelly
https://youtu.be/uRYVoIVJuoM?t=40m16s (40:16 just in case the time stamp doesn't work)
It says it is unusable in it's normal state, but applying an electric current may change its form. Normally, if I were to read something like this in a game I would just assume that means it's a standard crafting material, and by combining it with some other material you'll get something else. But we've seen that this game has a more active crafting system than many other games. There are parts where it can be static (like when you put different ingredients into a pot to cook), but we've also seen the player take a more active role. It's almost puzzle like in some cases. Take wood and flint, throw them on the ground, strike them with metal and use the friction to create a campfire. It's logical and active. And, I don't know which video it's in, but I have seen a video in which the player accidentally destroys a collectible by hitting it with his sword (I think it was actually chuchujelly). So with this we know two things. One, collectibles are tangible items that take up physical space and can be interacted with just like anything else (even to the point of breaking them and eliminating them from the game world). And two, interacting with different combinations of them in different ways produces different results.
And so, it looks like we're going to have to find a way to introduce electricity to chuchu jelly
on our own in an active way, rather than just putting it together with something else in a menu. So we should be able to figure out a way to hit it with natural lightning, or we will likely get some sort of lightning powers of our own that we can hit it with. Maybe an electric sword, or maybe a new rune power.
But basically, it looks like we're going to have to treat collectibles as puzzles in their own right, and take a "minecraftian" approach to them to see how they fit together with other items, and with the world at large. Rather than just taking them at face value, as is so often the case.