Rare Earth Elements

Rare earth elements (REEs) are uncommon metals materials that are difficult to obtain, especially in large quantities throughout the game. Most are only obtainable from a single ore, Rare Earth Ore, which is uncommon and only forms in small veins. Other than this, you can acquire them via the Cyclotron. NTM includes 8 rare earth metals, most with few uses outside of Desh, which is a super-alloy of all of these rare earth metals.

Actinium-227
Actinium-227 is a notable element, see its own page for more information.

Boron
Boron is a significant material, see its own page for more information.

Cerium
Part of the lanthanide series.

Acquisition
Primarily extracted from rare earth ore, it is of average rarity.

Bombarding Lanthanium with Lithium produces it.

Uses
Primarily Desh.

DFC Reaction Catalyst.

The Pulsating Crystal.

Singularity Screwdriver.

Nitanium Blend.

Bombarding it with Beryllium produces Neodymium.

Trivia

 * IRL, it is actually considered to be rather common.

Cobalt
Cobalt is a significant material, see its own page for information.

Lanthanium
Another REE that has an ingot form, again, useless.

Acquisition
Primarily from rare earth ore, it is common.

Sometimes Meteor Treasure Blocks can drop the ingot form.

Bombarding Caesium with Carbon produces it.

Uses
Primarily Desh.

When bombarded with Lithium, it produces Cerium.

Trivia

 * IRL, it is called "Lanthanum".
 * Its name means "to lie hidden".

Neodymium
Part of the lanthanide series.

Acquisition
Rare earth ore extraction, it is of average rarity.

Bombarding Strontium with Copper or Cerium with Beryllium produces it.

Uses
Primarily Desh.

The Dark Crystal.

Singularity Screwdriver.

Nitanium Blend.

Trivia

 * Neodymium is most known for making high-strength permanent magnets.
 * IRL, it is not actually considered that rare, no more so than copper or nickel.

Niobium
Niobium is another rare earth metal.

Acquisition
Primarily from rare earth ore, it is of average rarity.

Bombarding Iron with Copper or Strontium with Beryllium produces it.

Uses
Desh.

DFC Reaction Catalyst.

The Pulsating Crystal.

Singularity Screwdriver.

Nitanium Blend.

When bombarded with Copper, it becomes Caesium.

Trivia

 * It actually has the same Mohs hardness as titanium.
 * IRL, it can used for superconductors, if made into a niobium-titanium alloy. it is currently the most widely-used superconductor for industrial purpouses, and has a critical temprature of 10 Kelvin.

Zirconium
The most common REE in game.

Zirconium is a significant material, see its own page for more information.

Trivia

 * IRL, REEs are a specific set of 17 extremely similar elements, which are usually lanthanides or at least have similar properties to them.
 * Some non REE materials are included in this list, such as Boron and Actinium, because they come from the same ore and fill the same niche as teh other actual REEs. So in all intents and purposes, at least in NTM, they may be considered, rare earths.