MINERAL RIGHTS AND PROPERTIES (Details 1) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Mineral property expenditures	$ 981,493	$ 999,241	$ 3,638,408	$ 2,956,805
Palangana Mine [Member]
Mineral property expenditures	264,447	239,781	740,977	625,430
Goliad Project [Member]
Mineral property expenditures	28,658	40,295	71,373	90,174
Burke Hollow Project [Member]
Mineral property expenditures	152,307	288,742	570,099	439,058
Longhorn Project [Member]
Mineral property expenditures	5,760	23,724	11,832	24,777
Salvo Project [Member]
Mineral property expenditures	6,702	6,701	20,338	21,710
Anderson Project [Member]
Mineral property expenditures	15,211	30,489	45,241	45,993
Workman Creek Project [Member]
Mineral property expenditures	7,673	7,673	23,627	23,593
Slick Rock Project [Member]
Mineral property expenditures	12,206	12,207	40,012	36,759
Reno Creek Project [Member]
Mineral property expenditures	158,546	0	1,126,918	0
Yuty Project [Member]
Mineral property expenditures	114,481	91,175	339,677	282,887
Oviedo Project [Member]
Mineral property expenditures	17,982	58,054	99,224	273,124
Alto Parana Titanium Project [Member]
Mineral property expenditures	33,312	95,460	147,744	618,093
Other Mineral Property Expenditures [Member]
Mineral property expenditures	$ 164,208	$ 104,940	$ 401,346	$ 475,207