Note 4 - Mineral Rights and Properties (Tables)

9 Months Ended

Apr. 30, 2019

Notes Tables

Schedule Of Mineral Rights and Property Acquisition Costs [Table Text Block]

	April 30, 2019			July 31, 2018
Mineral Rights and Properties
Palangana Mine	$	6,285,898		$	6,285,898
Goliad Project		8,689,127			8,689,127
Burke Hollow Project		1,495,750			1,495,750
Longhorn Project		116,870			116,870
Salvo Project		14,905			14,905
Anderson Project		3,470,373			9,154,268
Workman Creek Project		649,854			1,657,500
Los Cuatros Project		257,250			257,250
Slick Rock Project		-			646,650
Reno Creek Project		31,527,870			31,527,870
Diabase Project		546,938			546,938
Yuty Project		11,947,144			11,947,144
Oviedo Project		1,133,412			1,133,412
Alto Paraná Titanium Project		1,433,030			1,433,030
Other Property Acquisitions		91,080			91,080
		67,659,501			74,997,692
Accumulated Depletion		(3,929,884	)		(3,929,884	)
		63,729,617			71,067,808
Databases		2,410,038			2,410,038
Accumulated Amortization		(2,408,939	)		(2,405,192	)
		1,099			4,846
Land Use Agreements		404,310			404,310
Accumulated Amortization		(381,055	)		(354,388	)
		23,255			49,922
	$	63,753,971		$	71,122,576

Schedule Of Mineral Rights and Property, Fair Value of Consideration Shares [Table Text Block]

Fair value of Consideration Shares	$	9,077,842
Transaction costs		55,787
Net consideration	$	9,022,055

Schedule Of Mineral Rights and Properties Net Consideration Allocation [Table Text Block]

Net consideration allocation to:	Allocation %			Net Consideration Allocation
Anderson Project		63	%	$	5,683,895
Workman Creek Project		12	%		1,082,646
Slick Rock Project		25	%		2,255,514
		100	%	$	9,022,055

Schedule Of Mineral Property Expenditures Incurred by Major Projects [Table Text Block]

	Three Months Ended April 30,				Nine Months Ended April 30,
	2019		2018		2019		2018
Mineral Property Expenditures
Palangana Mine	$	248,687	$	264,447	$	775,311	$	740,977
Goliad Project		34,071		28,658		71,949		71,373
Burke Hollow Project		605,025		152,307		880,039		570,099
Longhorn Project		10,157		5,760		35,691		11,832
Salvo Project		6,702		6,702		20,211		20,338
Anderson Project		15,097		15,211		52,367		45,241
Workman Creek Project		7,673		7,673		23,037		23,627
Slick Rock Project		12,206		12,206		41,637		40,012
Reno Creek Project		178,722		158,546		474,015		1,126,918
Yuty Project		8,297		114,481		94,299		339,677
Oviedo Project		105,724		17,982		167,207		99,224
Alto Paraná Titanium Project		78,325		33,312		138,588		147,744
Other Mineral Property Expenditures		142,672		164,208		444,467		401,346
	$	1,453,358	$	981,493	$	3,218,818	$	3,638,408