Darth Vader's armor isn't made of beskar, but of durasteel, allowing mobility and absorbing energy from lightsaber blows. Obsidian in the armor supercharged Vader's dark side power, turning anger into a power source.
Beskar is supposedly resistant or proof to lightsabers, but is it strong enough to prevent itself from being crushed by someone using the force? Beskar is an extremely tough metal. It's unable to be affected by blaster bolts and even lightsaber strikes.
Beskar is a sought-after metal in Star Wars with the power to repel lightsabers and blasters, making it invulnerable to most attacks. The Empire plundered Mandalore for beskar during the Great Purge, but never used it due to the lack of skilled armorers.
Boba Fett's armor was a suit of customized Mandalorian armor worn by Boba Fett, a human clone who became a bounty hunter. The armor was made from beskar. It consisted of a helmet, a cuirass, vambraces with retractable wrist blades, and a Z-6 jetpack.
Also, due to the unique properties of the micronized Mandalorian iron, also known as beskar, the user of a crushgaunt could easily catch and hold a lightsaber blade in his grasp, or summarily block an opponents blade.
Although beskar is more vulnerable to blaster bolts, a melee weapon being capable of piercing beskar armor is likely extremely rare, making The Armorer and Djarin's decision to melt it down in The Book of Boba Fett is understandable, as it posed a greater threat to them that even a lightsaber, which was notoriously ...
Cherished for its incredible strength and durability, beskar was notable for being able to withstand blows from even a lightsaber, and was commonly thought to be nearly indestructible, making beskar more prized than durasteel or cortosis.
Kylo Ren's obsession with Vader is clear, but Star Wars never explained how he acquired the helmet. It is speculated that he may have found it himself on Endor, or it could have been passed down to him by Supreme Leader Snoke.
Phasma's armor appears very similar to Mandalorian beskar, as it effortlessly deflects a blaster bolt fired by Rose Tico in The Last Jedi. While The Mandalorian shows that the remnants of The Empire are in possession of beskar, this is not canonically what Phasma wears.
(Fun fact: According to Star Wars canon, Phasma's armor isn't beskar either. It was actually made using scrap metal taken from Emperor Palpatine's old yacht.)
Later into the war, many Jedi wore chest plate armor that resembled modified clone armor designs. Anakin Skywalker and Obi-Wan Kenobi were examples of Jedi that wore these designs. Often, many Jedi continued to wear modified clone trooper gauntlets with chest plates.
However, he did use an incredibly powerful blaster - the LL-30, and was an excellent sharpshooter. So, technically, if you shoot it enough with a good enough gun, it'll pierce through the beskar.
Anyone can wield a lightsaber, but to quote Ahsoka Tano: "To wield it takes a good amount of training and discipline." Those often used to swinging swords wouldn't be used to a lightsaber, as it is a weightless blade- and can often result in tragedy.
In contrast, Din Djarin's armor was made from pure beskar, earned through the bounty on Grogu. This made Djarin's armor rare and even more durable than normal Mandalorian armor, allowing it to stay shiny and undamaged even when he walked into a barrage of blaster fire.
It's possible that Gideon used the pure beskar from a fallen Mandalorian in order to craft his own helmet from scratch, or he just used it as is. It's also a possibility that Esposito's villain is using the same general helmet of a dead Mandalorian but made some alterations to it along the way.
Jango Fett was a Mandalorian. He got the distinctive Beskar steel armor and attached weapons systems the same way every other warrior of the clan did; he earned it. Jango fought in the Mandalorian Civil War as a Mandalorian Commando. He was a foundling, just like Din Djarin long after him.
The black lightsaber, or Darksaber to give it its proper name, is one of the rarest lightsabers in Star Wars canon. Despite its rarity in canon, anyone who has seen the second season of The Mandalorian is likely to be familiar with the Darksaber.
At the time of The Mandalorian story, it is pretty clear that Moff Gideon is not a Sith Lord even though he has the Darksaber in his possession nor does he have any links to the Jedi. Moff Gideon is nothing more than one of the Empire's existing bad guys who officially worked for the Imperial Security Bureau.
Ahsoka's white lightsabers first appeared in the TV episode "Fire Across the Galaxy", the season one finale for Star Wars Rebels. According to Dave Filoni, one of the show's creators, the lightsaber blades are white to reflect her non-affiliation with the Jedi or Sith.
