The Arcanum of Matter deals with the transmutation and shaping of the Fallen World's various forms of physical matter. Mages proficient in this Arcanum can repair broken objects, transmute substances into other substances, shape solids, liquids, and gases as they please, annihilate matter, and even create matter out of nothing. It is primarily used by the Moros.
Matter is one of the ten Arcana of Mage: The Awakening, and the Gross ruling Arcana of Stygia. It is used to manipulate all forms of unliving matter, including organic substances which are not themselves alive, like orange juice or milk. It encompasses the classical elements, alchemical arts like transmutation, and the workings of non-magical tools and weapons. As a mage gains greater mastery in Matter they learn to affect more complex materials. This is a more metaphysical distinction than a scientific one; it requires lesser mastery to transmute liquids than gases, for example, and mud is easier to affect than precious metal. Matter cannot be used to enchant devices - that requires Prime - but at high levels it can affect or destroy extraordinary substances. A Master of Matter can combine the Arcanum with Prime to create a unique magical substance known as Thaumium. This material is expensive to create, as it is a magically fortified alloy of perfected gold, silver and mercury, but it is prized by mages because items made from it can deflect Awakened magic.
Its associated summoning is the Apeiron and the Exarch that supervises it is the Chancellor. Within astral Space, Matter is personified through the Aeon Echidna.