I keep telling myself that I am going to review your Archetype, and I don't. Not this time though. For now, ignoring all of the stuff technicalities that linger around the mechanics of Pendulum cards being treated as Continuous Spells or not, let's see how half of your monsters do.
Crystaline - Sapphire Seraph
PE: Basically a reverse Gem Flash Energy. It's not bad, I guess, but if there are any other options for potential combos, it might as well be switched.
ME: So I am guessing that the card is the searcher for the group, with LP bonuses. Searching is always good, but unless if your running a milling Deck or something alike, it won't see much play by adding or Summoning the "Crystaline" Pendulum monsters from the GY.
Crystaline - Azurite Animist
PE: Definitely opens up much more for combos. However, I regret to inform you that tokens cannot be used as Xyz Material. Do not fret however, because, glazing over your Extra Deck monsters, I noticed that you didn't have any Link monsters, which are very important for any Deck, but most especially for Pendulum Decks. So there's a thought for you.*
ME: Same as above. Also, there is no Attribute for these "Animal Tokens", though I guess EARTH. (I would also like it if you capitalized Material, but I am not going to focus much on the grammar; it's mostly good.)
Crystaline - Topaz Thief
PE: I'm not too sure about this card effect, since I don't know much about the Xyz monsters. For good measure, however, I would suggest putting a HOPT on the effect, or at least a SOPT.
ME: I'm not sure if being Pendulum Summoned using a "Crystaline" monster would count as being Summoned by that cards effect. I doubt it does. Just stating this, however, if you that was what you had in mind. Of course, if it does count, then this monster would most likely be Forbidden or Limited in some way, because this effect is very powerful. Maybe, you could just banish it until the End Phase, which would be more balanced if it must be specifically Special Summoned by a "Crystaline" card. The fact that it doesn't have any other effects balances it out as well I guess.
Crystaline - Pyrite Paladin
PE: ATK/DEF boost. Okay. Considering how the Field Spell (which I just now glazed over*) does not provide any stat boosts, this kind of fills in.
ME: So I also just now realized that all of your monsters have the Special Summon effect. So, if you want to include Pendulum Summoning as well, you might need to just include it bluntly alongside the Special Summon condition, i.e.
"If this card was Special Summoned by the effect(s) of a “Crystalline” monster, or was Pendulum Summoned using a "Crystaline" card:
Anyways, as with the PE, this card focuses on boosting stats. However, I would rather send the card to the Extra Deck face-up, optionally. I just now noticed this, but I find that cards can be a lot more consistent and much less punishing if the effects are optional and not required. Also, the ATK increase for the Xyz monster might be just a bit high. 800 is a good number for me, and it might be for you and this card; not too little, not too much. It might just be me though.
Crystaline - Opal Oracle
PE: So far, I haven't heard anything about returning any cards to the Deck or such, unless if it is to shuffle. Considering how easy this card would be to use, however, to simply guess a card type, with no loss for choosing incorrectly, it might as well be fine, as long as it doesn't get abused later on.
ME: The text could be worded differently (and more efficiently), but unless if you ask, I'll just focus on the effects. First effect does look good. Supports its Pendulum effect and pretty much adds a "Crystaline" monster to your hand. Second effect does not look good. Like before, I don't know what kind of combos you may have in store for this, but, unless if your playing against BA, you are most likely going to be at Luck's feet when activating this effect. (BA benefits from this anyways.) If it were to be banished, perhaps it would be somewhat usable, but, as it stands now, it might as well be replaced.
Crystaline - Diamond Dancer
PE: Okay, I would restrict the immunity to where it only protects other "Crystaline" cards, and even then the card's still powerful. If you wanted to make the card universal, however, and let it be used my multiple Archetypes and Decks and such, I trust you to make any balances. I would restrict the amount you can have in the Pendulum Zone at a time to 1.
ME: Alright. I'm sure that this won't be abused by some secret combo.
I may be saying a lot about these cards, but I do like what I see so far. Why don't you go figure out how you can improve the grammar on these cards, though it is pretty good.
* Just glazed over your Field Spell Card. Having a Link monster wouldn't hurt, if you ever lacked the Field Spell, but I don't know what else you could use the tokens for, unless if you wanted to branch off.