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ALL meanings of piedmontite

pied·mont·ite
P p
  • noun piedmontite a mineral, similar to epidote but containing manganese: found in schists and manganese ores. 1
  • noun piedmontite a dark red mineral occurring in metamorphic rocks: a complex hydrated silicate containing calcium, aluminium, iron, and manganese. Formula: Ca2(Al,Fe,Mn)3(SiO4)3OH 0
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