Stoneskin

(Player's Handbook v.3.5, page 284, DnD 3.5)

Abjuration

Level: ; Druid 5; Sorcerer/Wizard 4; Disciple of Thrym 5; Adept 4; Trapsmith 2; Fatemaker 4; Runescarred Berserker 4; Wu Jen 4; Sha'ir 4; Death Master 4; Urban Druid 5; , Earth 6, ; , Strength 6, ; , Dragon 6, ; , Endurance 5
Components: V, S, M
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 10 min./level or until discharged
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

The warded creature gains resistance to blows, cuts, stabs, and slashes.
The subject gains damage reduction 10/adamantine.
(It ignores the first 10 points of damage each time it takes damage from a weapon, though an adamantine weapon bypasses the reduction).
Once the spell has prevented a total of 10 points of damage per caster level (maximum 150 points), it is discharged.
Material Component: Granite and 250 gp worth of diamond dust sprinkled on the target's skin.