I assume you mean Veiled Crystals, and those come from epic items; your best bet is to have a crafting proffesion leveled high enough so you can craft epic items. As usual, the best is Tailoring.
First major problem you will encounter is getting Expulsom: this is used in almost 90% of rare and epic recipes and it ONLY comes from scraping gear (medium rare to get it, but you have like 100% chance to get it from scraping trinkets).
Best way to overcome this is farm tidespray linen, like a fuck ton of linen (Freehold best spot, altough there are some decent spots in Zuldazar as well). Use the linen to craft green bracers, scrap them, hope to get expulsom. Repeat until you can craft epic recipes.
Second problem with enchanting is that you also gonna need a fuckton of mats if you wanna max it:687 Umbra Shard, 3139 Gloom Dust, 25 Veiled Crystal 87 Expulsom and 12 Mark of Honor (but you wont need as much if you only need to unlock the weapon recipes and not max the proffesion).