About Tantalum Tantalum ores are found primarily in Australia, Canada, Brazil, and central Africa, with some additional quantities originating in southeast Asia. The average yearly growth rate of about 8 to 12% in tantalum demand since about 1995 has caused a significant increase in exploration for this element. Tantalum minerals with over 70 different chemical compositions have been identified. Those of greatest economic importance are tantalite, microlite, and wodginite; however, it is common practice to name any tantalum-containing mineral concentrate as tantalite primarily because it will be processed for the tantalum values and is sold on that basis. Tantalum mineral concentrates may contain from two to more than five different tantalum-bearing minerals from the same mining area. The sale of tantalum mineral concentrates is based on a certified analysis for the tantalum oxide they contain, with a range from 10 or 15 to over 60% depending on the mine source.
Commerce Resources Corp. is Vancouver-based company (British Columbia, Canada) with a phone number 6044842700. Our data show that the company is located at the address: Suite 1450 789 West Pender Street. The company has a web site: www.commerceresources.com.
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