Despite every D20 flavor of the Star Wars RPG dedicating several pages throughout multiple books to the subject of holocrons, not a single one of them appears to mention their weight. My gaming group makes inventory management a priority because our players typically prefer DEX-based character builds that dump STR, and carrying capacity is often used as the primary metric to reign in exactly how much STR a character can afford to dump. Therefore it is critical that we have accurate weights for desirable items, and holocrons are probably the single most desirable artifacts in the entire Star Wars universe.
Can anyone tell me, even roughly, how much a holocron is expected to weigh? I welcome any reliable source, including the now non-canon Expanded Universe material or references to the non-D20 flavors of the Star Wars RPG. I have already searched through my collection of Revised D20 and Saga Edition books as well as Wookiepedia and found nothing.