Note 4 - Mineral Rights and Properties (Tables)

3 Months Ended

Oct. 31, 2021

Notes Tables

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

	October 31, 2021			July 31, 2021
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		899,854			899,854
Los Cuatros Project		257,250			257,250
Slick Rock Project		60,000			60,000
Reno Creek Project		31,527,870			31,527,870
Diabase Project		772,602			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
		67,937,051			67,711,387
Accumulated Depletion		(3,929,884	)		(3,929,884	)
		64,007,167			63,781,503
Databases and Land Use Agreements		2,458,808			2,458,808
Accumulated Amortization		(2,456,683	)		(2,456,308	)
		2,125			2,500
	$	64,009,292		$	63,784,003

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

	Three Months Ended October 31,
	2021		2020
Mineral Property Expenditures
Palangana Mine	$	245,320	$	198,802
Goliad Project		97,454		45,789
Burke Hollow Project		715,541		129,778
Longhorn Project		2,921		2,288
Salvo Project		5,696		8,192
Anderson Project		16,495		19,466
Workman Creek Project		8,587		8,198
Slick Rock Project		13,490		13,136
Reno Creek Project		199,819		100,490
Yuty Project		8,045		5,994
Oviedo Project		182,747		47,611
Alto Paraná Titanium Project		60,858		16,451
Other Mineral Property Expenditures		99,543		105,566
	$	1,656,516	$	701,761