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Excalibur Mineral Corporation is a complete mineralogist's heaven Excellent quality mineral specimens, microscopes, UV lamps, Photographic Guide to Mineral Species on CD ROM, mineral models, and an analytical lab with SEM and EDS instruments in it's Peekskill, NY home
At 183.0DegreeC oxygen is a beautiful pale blue liquid, but at room temperature it is a colorless gas. It's only 21% of the atmosphere the 21% we all need if we want to live more than a few minutes longer.
Current List Each month, we offer an abbreviated selection of minerals from our inventory of over 200,000 samples. If you don't see what you're looking for here, or on our Recent Catalogs pages, or on our Rare Species lists, please request a special quote by mail, email, fax or telephone.Be specific as to mineral name and preferred size.