Found during the Helltide. Used to improve sacred and ancestral items.

Is it a stone, an organ, or something else? Indescribably, it is all of these things.

Salvaged from rare weapons and armor, and used to alter the latent magic of things.

Occultists and enchanters commonly use these crystals to reorient or redirect magical energy. The process renders them inert, so many are needed.

Salvaged from, and used to improve, legendary armor.

Fragments from storied armor with truly unusual properties.

Salvaged from, and used to improve, legendary jewelry.

Fragments from storied relics and talismans with truly unusual properties.

Obtained by using the Occultist to salvage nightmare sigils of any tier.

A mysterious powder that can be compressed into relics inviting peril for greater challenges and rewards.

Salvaged from, and used to improve, legendary weapons.

Shards from storied weapons with truly unusual properties.

You can disassemble legendary pieces of gear at blacksmiths. This will likely generate a Baleful Fragment, which is a material you can use when you want to upgrade legendary pieces of gear, further enhancing the stats on those items.