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