Essentia

Essentia, on the other hand, is the metaphysical essence of an object. You can't interact with it directly - when not bound within an object, essentia must be dissolved into Alkahest. There are thirteen known types of essentia in this world, which have been named after the celestial spheres. Each type is associated with a certain astrological category and elemental category, which determine how they are separated by the Astrological Centrifuge and Elemental Centrifuge.

Essentia	Color	Title	Astrological Category	Elemental Category
Mercury	Lilac	Essence of Flux	(Α) Inner Planet	(🜄) Water
Venus	Pink	Essence of Sparks	(Α) Inner Planet	(🜁) Air
Tellus	Green	Essence of Nature	(Α) Inner Planet	(🜃) Earth
Mars	Red	Essence of Blood	(Α) Inner Planet	(🜂) Fire
Jupiter	Orange	Essence of Flame	(Β) Outer Planet	(🜂) Fire
Saturn	Lime	Essence of Salt	(Β) Outer Planet	(🜃) Earth
Uranus	Cyan	Essence of Zephyr	(Β) Outer Planet	(🜁) Air
Neptune	Indigo	Essence of Depths	(Β) Outer Planet	(🜄) Water
Ceres	Brown	Essence of Ash	(Γ) Other Body	(🜃) Earth
Pluto	Teal	Essence of Wastes	(Γ) Other Body	(🜁) Air
Apollo	Yellow	Essence of the Sun	(Γ) Other Body	(🜂) Fire
Diana	Blue	Essence of the Moon	(Γ) Other Body	(🜄) Water
Void	Violet	Essence of the Stars	(Ξ) Firmament	(N/A) Ether

Essentia can be created in a Dissolution Chamber using Alkahest. The creative inventory also contains essentia buckets, which can be used to place essentia in the world - however, they are not obtainable in survival mode at this time.

Essentia can be kept in an item with an Essentia Vessel, stored in the world using an Essentia Tank, and transported between blocks using Essentia Conduits.