Kshatra Vairya (Avestan: 𐬑𐬱𐬀𐬚𐬭𐬀 𐬬𐬀𐬌𐬭𐬌𐬌𐬀, romanized: xšaθra vairiia; also Šahrewar Middle Persian: 𐭱𐭲𐭥𐭩𐭥𐭥,[3] and Xšaθra 𐬑𐬱𐬀𐬚𐬭𐬀, a cognate of Sanskrit kṣatrá in the Avestan language, from Proto-Indo-Iranian kšatrám) is one of the great seven "bounteous immortals" of Ahura Mazda in the Zoroastrian religion.
The spelling Xšaθra is used by followers of the Zoroastrian faith in a representation of the dominion of the Creator Ahura Mazda.
In the cosmology of the faith, Kshathra Vairya is borne of the divine principal of Vohu Manah, from which comes the core belief of 'Good Thoughts'.
In the Gathas, Xšaθra Vairya does not have an association with a specific creation, and it is only in later texts that this Amesha Spenta is considered the guardian of metals.
Later, with the event of bronze and then iron tools, this sky evolved to being of crystal, which was seen as both of stone and of metal (Yasht 13.2).