Topic summary
Beskar

Extracted from the Wikipedia article Mandalorians.
Literature
The Empire wishes to mine the planet for its beskar, a blaster-resistant steel, and establishes a garrison in the capital. Beskar is also described as being lightsaber-proof in the reference book The Jedi Path (2010). Mandalore and its people reappear again in the Legacy of the Force novels, set forty years after the original Star Wars film, where Boba Fett is convinced by his granddaughter Mirta Gev to assume the title of Mand'alor and again reunite the Mandalorian people.