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from | Encarta |  |
Fluorite |
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| The mineral fluorite is the most common source of the element fluorine. Pure fluorite is colorless, but impurities give rise to purple, yellow, blue, green, rose, and brown varieties. | ||||||
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| Mark A. Schneider/Photo Researchers, Inc. | ||||||
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| Appears in these articles: | ||||||
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| Fluorite; Fluorine | ||||||
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