MINERAL RIGHTS AND PROPERTIES (Details) - USD ($)	Apr. 30, 2017	Jul. 31, 2016
Mineral Rights and Properties
Mineral Rights and Properties, Gross	$ 41,479,164	$ 41,728,434
Accumulated Depletion	(3,929,884)	(3,929,884)
Mineral Rights and Properties	37,549,280	37,798,550
Mineral Rights and Properties, Total	37,669,432	37,973,951
Palangana Mine [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	6,443,028	6,443,028
Goliad Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	8,689,127	8,689,127
Burke Hollow Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	1,495,750	1,495,750
Longhorn Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	116,870	116,870
Salvo Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	14,905	14,905
Nichols Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	0	154,774
Anderson Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	9,154,268	9,154,268
Workman Creek Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	1,520,680	1,472,008
Los Cuatros Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	257,250	257,250
Slick Rock Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	615,650	615,650
Yuty Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	11,947,144	11,947,144
Oviedo Project [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	1,133,412	1,133,412
Other Property Acquisitions [Member]
Mineral Rights and Properties
Mineral Rights and Properties, Gross	91,080	234,248
Databases [Member]
Mineral Rights and Properties
Finite-Lived Intangible Assets, Gross	2,410,038	2,410,038
Accumulated Amortization	(2,388,947)	(2,364,019)
Finite-Lived Intangible Assets, Total	21,091	46,019
Land Use Agreements [Member]
Mineral Rights and Properties
Finite-Lived Intangible Assets, Gross	404,310	404,310
Accumulated Amortization	(305,249)	(274,928)
Finite-Lived Intangible Assets, Total	$ 99,061	$ 129,382

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Gross carrying amount as of the balance sheet date of certain rights acquired to exercise a certain privilege or pursue a particular business or occupation and which is deemed to have a finite economic life.

+ References

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- Definition

The accumulated decrease in the carrying value of the mineral properties as a result of mine or mineral production.

+ References

No definition available.

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- Definition

Carrying amount at the balance sheet date of mineral properties, gross of adjustments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 25
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=56951519&loc=d3e64895-109465

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61797-109447

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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- Definition

Mineral properties, net of adjustments.

+ References

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- References

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- Definition

Carrying amount at the balance sheet date of mineral rights, or rights to extract a mineral from the earth or to receive payment in the form of a royalty for the extraction of minerals, net of amortization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Mineral Rights
-URI http://asc.fasb.org/extlink&oid=6919630

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