First off, it's not 1%. Because you have multiple chances to get the drop (each carve, quest rewards, etc) it adds up. If you do the Caravan 6 quest "See the Lightning" (and break its head and pick up one shiny) you have an 18.07% chance of getting one.
http://kiranico.com/en/mh4u/item/zinogre-jasper
http://www.reddit.com/r/MonsterHunter/comments/2dtv05/shadys_drop_rate_calculator/
desiresensor.com is a bit easier to use.
Sure, for a little while. Will you make a room?Anybody up to hunt?
-Alternis