Tynzo crystal was a type of red crystal that could only be found on the planet of Isobe, in the Thustra system. Shipbuilders used it to reinforce glass to withstand hyperspace jumps. Thanks to the usefulness and rarity of Tynzo crystals, Isobe was overwhelmed with wealth.[1]
Appearances
"Never Far Behind" — Star Wars Rebels Magazine 39 (First appearance) (In flashback(s))