Magically Potent Materials

Magically Potent Materials are objects intrinsically charged with occult power that are activated via Alchemy. In settings where material components are needed for spells they may serve that function as well.
GURPS Magic p 222 has a list of natural materials "charged with occult power" organized by College with Consumable Material, Reusable Material, and Objects options.
While Thaumatology gives an example of an alternative college system built around the Ogham alphabet and trees the list can also be used as a natural material list. Most of the trees line up with the meanings given in Magic though there are exceptions. Spells come from Classic: Celtic Myth.
OghamLetter 	Tree 	Related Word 	Properties 	Spells
Beth (B) 	Birch 	Image 	beginnings, controlling illusions and simple creations 	Complex Illusion, Create Food, Create Plant,  Exorcism, Great Voice, Hideaway, Illusion Disguise, Illusion  Shell, Knots, Odor, Perfect Illusion, Phantom Flame, Rejoin,  Repair, Restore, Sharpen, Silence, Simple Illusion, Sound,  Stench, Stiffen, Voices.
Luis (L) 	Rowan
(mountain ash)	Air, Light 	magical protection, divination, compel ghosts and demons 	Banish, Conceal Magic, Hide Thoughts, Magic Resistance, Scryguard, Scrywall, Seek Earth, Spell Shield, Summon Shade, Summon Spirit.
Fearn (F) 	Alder 	Fire 	Fire, opposes water, wind control, oracles and resurrection, color magic 	Colors, Continual Light, Cook, Distill, Divination: Pyromancy, Dye, Ferment, Heat, Ignite Fire, Light, Light Jet, Melt Ice, Shape Fire, Whirlwind, Windstorm
Saille (S) 	Willow 	Water 	Water (favorable), death, moon, feminine aspect (Yin), and female spellcasters 	Death Vision, Freeze, Purify Water, Sense Spirit
Nion (N) 	Ash 	Transform 	Water (controls and dominates), Flight (broomsticks) 	Breathe Water, Flight, Levitation, Lighten Burden, Manipulate, Poltergeist, Shape Water, Slow Fall, Swim, Umbrella, Undo
Uath (U) 	Hawthorn 	Body 	bad luck, curses, associations with cleansing; considered bad luck to bring hawthorn blossoms indoors	Avoid, Blur, Clumsiness, Curse, Darkness, Fatigue, Glue, Hide, Itch, Nightmare, Pain, Paralyze Limb, Sickness, Spasm, Strike Blind, Strike Deaf, Strike Dumb, Stun, Total Paralysis, Wither Limb, Wither Plant
Duir (D) 	Oak 	Plant 	Earth, Air, Gate (movement between worlds) 	Earth to Air, Earth to Stone, Purify Air, Shape Air, Shape Earth, Shape Stone, Stone to Earth, Walk Through Earth
Tinne (T) 	Holly 	Protect 	Good luck, Bless, Weather prediction 	Bless, Bless Plants, Bravery, Climbing, Dexterity, Divination: Nimbomancy (divination by watching the shape of clouds), Great Haste, Haste, Keen Ears, Keen Eyes, Keen Nose, Might, Monk’s Banquet, No-Smell, Predict Weather, Purify Food, Quick March, Rear Vision, Resist Pain, Vigor, Wisdom
Coll (C) 	Hazel 	Sence 	Wisdom and Knowledge; regarded as most magical of all trees 	Alarm, Analyze Magic, Ancient History, Aura, Beast Seeker, Beast Speech, Borrow Language, Borrow Skill, Dark Vision, Detect Magic, Earth Vision, Far-Hearing, Find Direction, Find Weakness, Glass Wall, Hawk Vision, History, Ice Vision, Identify Plant, Identify Spell, Infravision, Invisibility, Know Illusion, Mage Sense, Mage Sight, Measurement, Night Vision, Pathfinder, Plant Sense, See Secrets, Seek Food, Seek Plant, Seek Water, Seeker, Sense Danger, Sense Emotion, Sense Foes, Sense Life, Sound Vision, Tell Time, Test Food, Trace, Truthsayer, Water Vision
Cerit (Q) 	Apple (Holly, Aspen)	Communicate 	Physical protection, Good luck, Bless, Weather prediction 	
Muin (M) 	Vine/Bramble 	Control, Food	Intoxication, Joy, Control, Madness 	Beast Link, Beast-Soother, Beast Summoning, Berserker,
Bird Control, Charm, Compel Truth, Control Illusion, Daze, Dispel Illusion, Drunkenness, Emotion Control, Fear, Fish Control, Foolishness, Forgetfulness, Hinder, Independence, Insect Control, Loyalty, Madness, Mammal Control, Mass Daze, Mass Sleep, Master, Mental Stun, Panic, Persuasion, Rider, Rooted Feet, Roundabout, Sleep, Tanglefoot, Terror
Gort (G) 	Ivy 	Strengthen 	Mental skills, languages, and extracting truths. 	Haruspication, Lend Language, Lend Skill
Ngetal (N) 	Reed 	Move, Weaken 	Bonds, made things. 	Repair Arrow, Shatterproof
Straif (STR,Z)	Blackthorn 	Weaken 	Not given 	Not given
Ruis (R) 	Elder 	Heal 	Healing, illness control 	Awaken, Heal Plant, Lend Health, Lend Strength, Minor Healing, Peaceful Sleep
Ailm (A) 	Silver Fir 	Create, Sound	Birth, Enchantment, Creation 	Animate Plant, Delay, Enchant*, Limit, Link, Name, Password, Water to Wine (and some combination spells)
Onn (O) 	Gorse 	Magic, Animal	Regarded as the most powerful tree of magic (focus protection); amplifies any "consonant" tree, 	Magelock, Mystic Mist, Reflex, Remove Enchantment, Suspend Enchantment, Ward (and some combination spells)
Ura (U, W) 	Heather 	Earth 	Blessing, favorable effects, personal control 	Delayed Message (and some combination spells)
Eadha (E) 	Aspen 	Mind 	Physical protection 	Armor, Deflect, Forest Warning, Fortify, Hide Path, Iron Arm, Nightingale, Shield, Tangle Growth, Watchdog (and some combination spells)
Idho (I) 	Yew 	Spirit 	Weapons, Death, Decay, Preservation. 	Accuracy, Dancing Weapon, Decay*, Disintegrate, Loyal Sword, Poison Food, Preserve Food, Puissance, Quick-Draw, Ruin, Shatter, Weaken (and some combination spells)
==Reference==
*GURPS Magic p. 222
*GURPS Thaumatology p. 43-47
*Classic: Celtic Myth p 96-105
Category:Magic Concepts
Category:Alchemy
Category:Lists