Note 4 - Mineral Rights and Properties (Tables)

3 Months Ended

Oct. 31, 2020

Notes Tables

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

	October 31, 2020			July 31, 2020
Mineral Rights and Properties
Palangana Mine	$	6,027,784		$	6,027,784
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			3,470,373
Workman Creek Project		799,854			799,854
Los Cuatros Project		257,250			257,250
Slick Rock Project		30,000			30,000
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
		67,581,387			67,581,387
Accumulated Depletion		(3,929,884	)		(3,929,884	)
		63,651,503			63,651,503
Databases and Land Use Agreements		2,458,808			2,458,808
Accumulated Amortization		(2,455,183	)		(2,454,808	)
		3,625			4,000
	$	63,655,128		$	63,655,503

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

	Three Months Ended October 31,
	2020		2019
Mineral Property Expenditures
Palangana Mine	$	198,802	$	320,027
Goliad Project		45,789		59,965
Burke Hollow Project		129,778		648,861
Longhorn Project		2,288		10,157
Salvo Project		8,192		7,269
Anderson Project		19,466		16,053
Workman Creek Project		8,198		8,198
Slick Rock Project		13,136		13,134
Reno Creek Project		100,490		148,043
Yuty Project		5,994		14,196
Oviedo Project		47,611		105,938
Alto Paraná Titanium Project		16,451		56,248
Other Mineral Property Expenditures		105,566		115,362
	$	701,761	$	1,523,451