3. Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue Recognition [Abstract]

Disaggregation of Revenue

	Year Ended
	December 31,
	2020		2019
Antimony	$	2,942,628	$	5,450,649
Zeolite		2,118,823		2,623,117
Precious metals		174,079		194,239
	$	5,235,530	$	8,268,005

Revenue by Geographic Area

	Year Ended
	December 31,
	2020		2019
United States	$	4,662,841	$	7,454,163
Canada		572,689		813,842
Mexico		-		-
	$	5,235,530	$	8,268,005

Sales of Products to Significant Customers

	For the Year Ended
Sales to Three	December 31,			December 31,
Largest Customers	2020			2019
Mexichem Specialty Compounds Inc.	$	633,846		$	1,823,194
GE Chaplin, Inc.		589,384			-
Nyacol Nanotechnologies		417,501			1,099,504
Kohler		345,899			1,132,674
	$	1,986,630		$	4,055,372
% of Total Revenues		38	%		49	%

Accounts Receivable from Largest Customers

	December 31,			December 31,
Largest Accounts Receivable	2020			2019
Nutreco Canada Inc.	$	21,619		$	21,219
Earth Innovations Inc.		68,055			15,184
Ralco Mix		16,600			12,800
Premier Tech		12,255			-
Lake Shore		-			27,854
Total	$	118,529		$	77,057
% of Total Receivables		50	%		27	%