(ShareCast News) - Arian Silver said the exclusivity period for it to evaluate a gold and silver tailings project held by Tierra Nuevo Mining Ltd has been extended by 60 days to 28 October.There was no cost incurred in securing the extension, which followed a 120-day period.As reported previously, a NI 43-101 report had outlined an indicated mineral resource containing 1 million tonnes with 3 grams per tonne (g/t) gold and 55 g/t silver, representing approximately 100,000 ounces (oz) of gold and some 1.7 million oz of silver.The company continued to evaluate other projects within Mexico and was working through a dossier of potential opportunities all of which are at least at advanced exploration stages."These include but are not limited to, all of Arian Silver's original projects other than Calicanto, such as San Celso and the surrounding satellite concessions," Arian said.