rare boss drops. some materials can only be found in solo-mode while some in party-mode. refer to this link for materials from the dusk temple. if you have no idea what solo or party mode is, check out the hall of dusk guide.
in holy equipment, you can choose what items you want to craft, be it a low level equipment or a high level equipment. here, you cannot craft a higher level dusk equipment if you dont have a sword soul (the equivalent of mold) which is a product when a low level equipment is broken down.
when you see a high level dusk equipment, you will always see this item: 