- For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science and display.
- All specimens are guaranteed as advertised, and we are the only mineral dealer in the U.S. with in-house Energy Dispersive Spectroscopy capability to ensure identification accuracy. Visit us at www.excaliburmineral.com
Excalibur Mineral Corporation
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