Product Information
Selected for the intense colors that they exhibit under longwave ultraviolet radiation, these numbered specimens are fascinating subjects for study. Includes: aragonite, calcite, chalcedony, corundum, dewelite, fluorite (two), hackmanite, opal (hyalite), opal, petroleum, scapolite, tirodite, willemite, zircon, and keyed identification guide. Size ranges from 5 x 5cm to 5 x 7.5cm. Set of 15.
Note: collections are subject to change depending upon availability of individual items.
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