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单词 pickeringite
释义 ˈpickeringite Min.
[Named 1844 after John Pickering, President of the American Academy: see -ite1.]
A hydrous sulphate of aluminium and magnesium, found in Peru and Nova Scotia, in masses of silky white fibres, and as acicular crystals.
1844Amer. Jrnl. Sc. XLVI. 360 Pickeringite a native magnesian alum.
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