Crystal is a rare resource found in caves, mountain tops, and certain underwater locations in ARK: Survival Ascended. It's used for electronics, spyglasses, and advanced crafting.
Node yields assume the base harvest HP from game data (e.g. 1000 for Redwood trees, 620 for Metal nodes). In-game, trees and rocks with bAllowHarvestHealthScalinghave per-instance HP that varies with the node's size, so actual yields per node will vary. The values shown represent the average.
These creatures reduce Crystal weight when carried in their inventory.
The Doedicurus is the best Crystal farmer with a 21x gather multiplier from game data. The Rock Elemental is the runner-up with 9x.
The following creatures reduce Crystal weight when carried: Dunkleosteus (-50%), Helicoprion (-50%). This means they can carry more Crystal before becoming encumbered.