XAUR backed up by gold?
when new mint?
Not anymore by the end of 2017... maybe in summer 2018, the production price of 0.31 USD looks like difficult to reach.
I know patience is on the lower limit especially since the results of Xauruma values are poor - price 0,16 instead 0,31... it's hard to see how other currencies are growing while xaurum does not show any progress in value price.