Ambergris

A Genesis resource with two jobs

Ambergris first arrived with Genesis: Part 1 and is found in both ARK: Survival Ascended and ARK: Survival Evolved; the ARK Wiki also lists it on Genesis: Part 2 and Fjordur. The game describes it as "A waxy substance secreted by the Astrocetus. Used to create ordnance for the Astrocetus Tek Saddle." In practice it serves as the ammunition that charges the bomb attack of the Astrocetus, and it is also a food for baby Magmasaur.

Feeding Magmasaur with it

For a baby Magmasaur, it fills 500 food, and it also counts as comfort food. Adult Magmasaur can be force fed Ambergris to restore 300 health. The wiki adds a point for breeders: babies whose food capacity starts below 500 have to be force fed until their capacity grows past 500.

Where to collect Ambergris

• Genesis: Part 1: kill an Astrocetus, or mine the rocks with green lines in the lunar biome.
• Genesis: Part 2: mine rocks in Space while the ringed asteroid is present, which white supply crates signal.
• Fjordur: look for rocks with visible Ambergris in the Abyssal Depths cave, down at its bottom beside the lava trench. The wiki warns that Mosasaur and Tusoteuthis live in that cave.

Using an Ankylosaurus raises the harvesting efficiency. Despite the item text, the wiki points out that the Astrocetus does not actively leave Ambergris behind. Loot is another route: 44 crate types can contain it, such as the Genesis Blue, Cyan and Purple crates on Genesis: Part 2.

Weight and a 20-minute spoil timer

Each piece weighs 5, and Ambergris has a stack size of 1, so every piece takes its own slot. It spoils after 1200 seconds, which is 20 minutes. The wiki notes that Refrigerators, Tek Troughs and Feeding Troughs can all hold it.