Powdered Mammoth Tusk

Where to find

 * Sold by Bothela of The Hag's Cure in Markarth.
 * Sold by Angeline Morrard of Angeline's Aromatics in Solitude.

Restore Stamina

 * Bear Claws
 * Bee
 * Charred Skeever Hide
 * Eye of Sabre Cat
 * Hawk Beak
 * Histcarp
 * Honeycomb
 * Large Antlers
 * Mudcrab Chitin
 * Orange Dartwing
 * Pearl
 * Pine Thrush Egg
 * Purple Mountain Flower *
 * Sabre Cat Tooth
 * Silverside Perch
 * Small Pearl
 * Torchbug Thorax
 * Wisp Wrappings

Fortify Sneak

 * Abecean Longfin
 * Beehive Husk
 * Frost Mirriam
 * Hawk Feathers
 * Human Flesh
 * Purple Mountain Flower *

Weakness to Fire

 * Bleeding Crown
 * Frost Salts
 * Ice Wraith Teeth
 * Juniper Berries
 * Moon Sugar

Fear
* multiple effects
 * Blue Dartwing
 * Cyrodilic Spadetail
 * Daedra Heart
 * Namira's Rot

Толченый бивень мамонта (Skyrim)