alstonite


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alstonite

[′ȯlz·tə‚nīt]
(mineralogy)
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In general, the sources of barium in groundwater can be barium-rich feldspars, plagioclases, micas, apatite, baryte, barium-carbonate minerals of the aragonite group, such as witherite and alstonite (= bromlite, barytocalcite), barium rare-earth uranium carbonates, etc.
Several minerals were first discovered in the North Pennines including witherite on Alston Moor by Dr William Witherite in 1783, Alstonite in 1835 and Brianyoungite, which was found by Northumberland geologist Brian Young in 1993.