Petrified Tissue Valheim 1.0.20
Petrified Tissue is a crafting material that stacks to 30 in Valheim.
“A hard and sturdy material with plenty of potential. Needs to be refined in a Blast Furnace.”
Petrified Tissue is a material. The game describes it as a hard and sturdy material with plenty of potential, and says it needs to be refined in a Blast Furnace.
Each unit weighs 14, and you can carry up to 30 in a single stack. It cannot be teleported, so you have to carry it by hand if you want to move it.
Other material items
Acorns, 
Amber, 
Amber Pearl, 
Ancient Bark, 
Ancient Coin, 
Ancient Metal, 
Ashlands Gourmet Bowl, 
Ashwood, 
Asksvin Bladder, 
Asksvin Hide, 
Asksvin Neck, 
Asksvin Pelvis.