Ectoplasm

Ectoplasm is a goo that sometimes forms after certain spirits have affected an area. It is thought to be spontaneously generated when magical energy from the spirit collects in that place. It can continue to radiate the spirit's magic and influence after it has left. Ectoplasm is comparable to moonmilk in its formation and is a valuable alchemical ingredient.
Fae are also known to bleed a more watery ectoplasmic substance.
==Sources==
http://ghostbusters.wikia.com/wiki/Ectoplasm
http://terraria.gamepedia.com/Ectoplasm
http://elderscrolls.wikia.com/wiki/Ectoplasm_(Skyrim)
http://harrypotter.wikia.com/wiki/Ectoplasm
Category:Substances
Category:Alchemy
Category:Potion Ingredients
Category:Spirits