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syngenite

noun syn·ge·nite \ ˈsinjəˌnīt \
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Definition of syngenite

plural -s
: a mineral K2Ca(SO4)2.H2O consisting of a hydrous calcium potassium sulfate and occurring in colorless or white tabular crystals (hardness 2.5, specific gravity 2.6)

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Origin and Etymology of syngenite

German syngenit, from Greek syngenēs related + German -it -ite; from its relationship to polyhalite

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