Speculation: Materia is like glass where it's really a very viscous liquid (and not really a solid) and the mako crystals around Sephiroth and Lucrecia are relatively recent mako crystals. They haven't finished hardening yet and while they're sticky enough to hold together, they are viscous enough to move though.
IDK!
Materia/Lifestream is the ultimate unobtanium! It behaves the way the plot needs it to!
You know, I don't think I've ever heard someone speculate about that before. As far as I can tell, materia usually grows from roots, which likely help it concentrate in a particular area. Otherwise it condenses out of sheer concentration, like how it's likely produced artificially. Considering the Weapons are made of spirit energy and summons dematerialize into spirit energy, I suppose it's reasonable to interpret it that way. It would also add to how disturbing materia during its many year formation process can mess it up.
Flare said:
I've always wondered about materia myself. I would actually like to hear some good explanations in the remake for how this stuff works.
When I first watched AC, I assumed materia was used by inserting it into your arm/body, like Kadaj does, but that seems to be a special case. The original game has you putting materia inside weapon and armor slots, suggesting that materia being worn in some way is able to be used. Some people hold it in their hands to use it too.
I think slotting it on your gear seems to be the common practice, but it's also possible to use it remotely in cases or by absorbing it?
The remnants are made of negative lifestream, like the shadow creepers. You can actually see a bit of drak mist when Kadaj inserts the materia in his arm, so it's safe to say they can do that because of the way they're made. I always figured ateria slots were mainly used to have a safe place to keep the materia while keeping your hands free.
The abridged version of the OG's materia tutorial (explained by Cloud to Barret) is as follows:
Sure, I’ll explain how Materia works. [...] Now look at my weapon here. Each weapon and armor has slots in it. Choose which slot you want to put Materia in. Now select the materia you want to use. This is curative Materia. [...] Now you can use the magic Cure. And that’s all there is to equipping Materia. See? It wasn’t that tough! [...] There’s just one thing you have to be careful of. Whenever you equip Materia, your situation changes. Parts of you may become stronger… while others get weaker. Normally, when you equip magic materia, your magic power will get stronger. But your physical strength weakens. So, materia’s kind of a double-edged sword. [...] It’s wise not to overuse Magic Materia. But try out various things. [...] OK, that’s about it. I’ll give you some advanced tips later.
From that it would seem that equipping materia affects the person's physical strength and magic ability, demonstrate through stat changes. There's also the matter of how materia grows and multiplies when mastered, which happens through battle, as well as how in CC, there's materia fusion, which requires SP. SP is gathered either by fighting monsters or by converting materia into it, which seems to indicate that it's spirit energy. SP is short for SOLDIER points. There's also the matter of materia color. I find a way to reconcile the color coding in CC and the OG with the lack of it in DoC and ACC is that the colorations seen in CC and the OG are the most common for that type, even if the actual colorations may vary.
Flare said:
Could be them being 'special' or different; in this case they all have some form of Jenova cells, so that could enable someone to use it from a distance/set it up like that, as when Genesis summons Ifrit remotely though the materia in Fort Tamblin.
But since no one in-game ever mentions how odd this was, I don't know if it is so rare. Perhaps it's more of an individual ability thing? Some people can do it and some can't, maybe depending on their willpower?
Sephiroth uses some form of magic it seems in CC, when he's fighting Genesis Copies in the hallway of the Shinra Buidling, right before Zack and Angeal arrive. Yet he doesn't seem to be carrying any materia, and he doesn't have slots for it on his sword or armor. Is it in his pocket, in his arm? Or was that not magic?
I'd think it'd be the mako rather than Jenova cells, since mako is what materia is made of, as well as what Shinra seems to call spirit energy, from what I found when reviewing mentions of the terms. The cetra could guide the flow of the lifestream and were adept at magic, if materia containing the knowledge of the Ancient and Aerith's high magic stats are anything to got by. You'll notice that Cloud and Vincent happen to have the second highest bas magic stat after Aerith, which would be in line with mako exposure improving magic. While Genesis' specialty is clearly magic, Shelke was said to only have her SND abilities to make her stand out. Azul uses magic too so maybe other Deepground soldiers had similar magical ability to Shelke. Of course, Azul may could've been underestimating her in his contempt for her weakness by his standards. The only comment I remember being made on Genesis's magic was when Zack disapproved of the way he was making use of the summons, apparently finding it dishonorable.
There's a chance that while not limited to individuals who are either part cetra or were exposed to mako, it still requires a certain level of skill with magic. As for Sephiroth's use of magic, I didn't include instances where magic s used without the materia in sight, as they could simply either be kept out of the viewer's sight or no one bothered including them on the character. I mean, Zack's equiped materia aren't visible are they? You don't really see the materia used in any other instances of magic use in the game, such as Genesis' fire spells and Angeal using Quake. Sephiroth eems to have used some kind of lightning spell.
Flare said:
I think with Cloud giving the materia to Sephiroth, he was able to do so because Sephiroth willed him to do it; Both Sephiroth and Lucrecia were encased willingly, but where Lucrecia did so out of guilt, sort of making it her grave, Sephiroth was intending his to be merely temporary until he got the materia. Makes sense that Cloud, willingly giving him the materia, would be able to put his hand into the 'materia encasing'. I believe Sephiroth, at that time, had enough power to make such a thing possible.
I'm pretty sure Sephiroth didn't end up there willingly, though it was likely necessary in order to come back. I like The Engineer's explanation to turn the interpretation of solid matter phasing into solid matter into solid matter entering semi-solid matter instead. When Sephiroth was phasing through stuff earlier in the game, he was basically a ghost. I find there's only so much power you can let a villain have before it gets kinda ridiculous that he'd need more to attain godhood. I mean unless Sephiroth's still missing his lower half at that pont, he wouldn't have had to rely on Jenova's body to get things done.