from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A manganic variety of epidote.
from the GNU version of the Collaborative International Dictionary of English
- n. A manganesian kind of epidote, from Piedmont. See epidote.
from The Century Dictionary and Cyclopedia
- n. A mineral closely related in form and composition to epidote, but containing manganese, hence sometimes called manganepidote. It is of a reddish-brown color, and is found at St. Marcel in Piedmont.
Piedmont + -ite (Wiktionary)