Emerald Tablet

The Emerald Tablets are mysterious items of unknown number.

There are many Emerald Tablets found throughout Noita, each with a different text etched onto them.

Number Emerald Tablets (I, II, III, etc.) and the Emerald Tablet of Thoth are all accompanied by an Orb of True Knowledge.

It is possible to utilize Emerald Tablets as weapons by throwing them at enemies, similar to rocks created by the Summon Rock spell. This is especially effective early in the game. They do considerable damage and are counted as accidental ('trick') kills, rewarding twice as much gold dropped (or four times as much with the Trick Greed perk). This form of 'attack' is even effective against powerful enemies such as stevari.

They can also be converted into gold when placed on the pedestal on top of the Floating Island.

However—upon converting any of the tablets into gold there is a minor chance that 2-3 Helvetinkatset will spawn and very likely end your current run for you. EXAMPLE
(See here for a brief explanation of the probability of enemy spawns.)

Tablets

Name	Text	Location	Image
Emerald Tablet of Thoth	The necessity of concealing the Art is one of the chief anxieties of alchemists. We are sworn to secrecy by heaven and earth and hell, by the four elements, by the height and the depth, by Hermes, by Anubis, and by the howlings of Kerkoros. An oath has been required of us to reveal nothing clearly to any uninitiated being.	On top of the pyramid in the desert
Secretorum Hermetis	The sacrifice of oneself to the pursuit of knowledge is the highest tribute to the gods.	Located in the forest to the left in the giant tree above the collapsed mines.
Tabula Smaragdina	If all the mountains were of silver and gold, what would they profit a man who lives in constant fear of death? Hence there cannot be in the whole world anything better than our Medicine, which has power to heal all the diseases of the flesh.	The right side of the mines near a pool of lava.
Emerald Tablet - volume I	Tis true without lying, certain and most true. That which is below is like that which is above and that which is above is like that which is below to do the miracles of one only thing And as all things have been and arose from one by the mediation of one: so all things have their birth from this one thing by adaptation.	Located high in the air directly above the starting location on a floating island.
Emerald Tablet - volume II	Thence is born a spirit white as snow, and another spirit red as blood, which two spirits are contained in a third hidden thing.	At the bottom of the Frozen Vault.
Emerald Tablet - volume III	Heed my warning, or death and decay will follow	Located beneath the lava lake by Tabula Smaragdina.
Emerald Tablet - volume IV	The definition of death is the disjunction of the composite, but there is no disjunction of that which is simple, for it is one. Death consists in the separation of the soul from the body, because anything formed out of two, three, or four components must disintegrate, and this is death. Understand, further, that no complex substance which lacks fire eats, drinks, or sleeps, because in all things which have a spirit fire is that which eats.	At the bottom of the Sandcave.
Emerald Tablet - volume V	And the Lord spake, saying, 'First shalt thou take out the Holy Pin. Then, shalt thou count to three. No more. No less. Three shalt be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out. Once at the number three, being the third number be reached, then, lobbest thou thy Holy Hand Grenade of Antioch towards thy foe, who, being naughty in My sight, shall snuff it.'	The left side of the Magical Temple.
Emerald Tablet - volume VI	Some Alchemists fancy that the work from beginning to end is a mere idle entertainment; but those who make it so will reap what they have sown -- nothing. We know that next to the Divine Blessing, and the discovery of the proper foundation, nothing is so important as unwearied industry and perseverance in this First Operation. It is no wonder, then, that \nso many students of this Art are reduced to beggary; they are afraid of work, and look upon our Art as mere sport for their leisure moments. For no labour is more tedious than that which the preparatory part \nof our enterprise demands.	In the left side of the fungal cavern of the underground jungle.
Emerald Tablet - volume VII	Among those who devote themselves to the transmutation of metals, however, there can be no such thing as mediocrity of attainment. A person who studies this Art, must have either everything or nothing. An Alchemist who knows only half their craft, reaps nothing but disappointment and waste of time and money; moreover, they lay themselves open to the mockery of those who despise our Art. Those, indeed, who succeed in reaching the goal of the Magistery, have not only infinite riches, but the means of continued life and health. Hence it is the most popular of all pursuits.	Past the lava pool that Tabula Smaragdina can be found near, over a chasm, in The Orb Room.
Emerald Tablet - volume VIII	Woe unto all ye fools! How ignorant are ye of this Art, for which ye would die if ye knew it! I swear to you that if kings were familiar with it, none of us would ever attain this thing. O how this nature changeth body into spirit! O how admirable is Nature, how she presides over all, and overcomes all.	In The Middle of The Work (Hell)
Emerald Tablet - volume IX	In this way, then, Nature generates by means of this sulphur the different kinds of metals in the veins of the earth, according to the diversity of degrees and alterations.	Deep under snow biome In The Snow Chasm.
Emerald Tablet - volume X	Take, he tells us, the stone of gold, combine with humour which is permanent water, set in its vessel, over a gentle fire until liquefaction takes place. Then leave it until the water dries, and the sand and water are combined, one with another; then let the fire be more intense than before, until it again becomes dry, and is made earth. When this is done, understand that here is the beginning of the arcanum; but do this many times, until two-thirds of the water perish, and colours manifest unto you.	At the bottom of the Desert Chasm in a temple similar to The Orb Room.

Trivia

The Emerald Tablets and the quotes on them - possibly even the Locations where they are found - are references to the real https://en.wikipedia.org/wiki/Emerald_Tablet, which is occasionally referenced in Occult, Alchemical and esoteric contexts.

Emerald Tablet Volume V contains a quote from "Monty Python and the Holy Grail", fitting the Holy Bomb spell next to it.