Thunder Stone

Tier 2 material

Verified against 0.221.12, source: jotunn_docs, kirilloid.

Thunder Stone statistics
Prefab	Thunderstone
Item Type	Material
Category	material
Progression tier	2
Weight	10
Stack Size	20

Also at this point

Abyssal Harpoon

Abyssal Razor

Acorns

Amber

Amber Pearl

Ancient Seed