Tolga Kumova’s Aston Minerals (ASX:ASO) started out as a gold junior when the company hit significant nickel mineralization.Kumova was behind Syrah Resources, an African graphite company, which now has a valuation north of $600 million. The company recently signed up Tesla for an offtake agreement.Aston Minerals Edleston project is located about 60 Km south of Timmins, Ontario. The company announced 163.5m at 0.52% Ni & 0.016% Co from 186.5m at its Boomerang target. Kumova is executive chair of Aston.