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Costs Incurred (Tables)
9 Months Ended
Mar. 31, 2015
Mineral Industries Disclosures [Abstract]  
Costs to Acquire and Explore the Properties
Costs to acquire and explore the Original Properties and Additional Properties were as follows: 
 
 
Three Months Ended March 31,
 
Nine Months Ended March 31,
 
 
 
2015
 
2014
 
2015
 
2014
 
Acquisition of mineral interests
 
$

 
$

 
$

 
$

 
Exploration costs, claim rentals, and minimum royalties
 
318,779

 
254,174

 
613,515

 
6,874,708

 
Total costs incurred
 
$
318,779

 
$
254,174

 
$
613,515

 
$
6,874,708