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scheelite |
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scheelite (shā`līt, shē`–), heavy white or yellow mineral, calcium tungstate, CaWO4, crystallizing in the tetragonal system. It is found in granite pegmatites, in contact-metamorphic deposits (especially limestones intruded by granites), and in quartz veins. It is an important ore of tungsten and is mined in many parts of the world. Scheelite fluoresces bright bluish-white in ultraviolet radiation, a distinguishing feature utilized in prospecting and mining. |
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? Mentioned in | ? References in periodicals archive | |
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Very minor amounts of scheelite and wolframite have been observed. Information on specific occurrences can be found in the MINFILE and NORMIN databases, for Yukon and NWT, respectively, although beryl is likely more common than reported in these databases and the clever explorationist may consider searching for allied characteristics such as tourmaline, pegmatite, fluorite, scheelite, etc. Very minor amounts of scheelite and wolframite have been observed Molybdenite occurs as medium grained flakes, books and rosettes along margins of quartz veins within the stockwork zone and in most of the stringer zones. |
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scheelite
