紅こう簾れん石せき

noun

piedmontite; piemontite; manganese epidote

A mineral name used in geology and mineralogy; a reddish-brown to black manganese-bearing epidote.

• 紅こう簾れん石せきはマンガンを含ふくむ緑りょく簾れん石せきの一いっ種しゅです。

  Piedmontite is a manganese-bearing variety of epidote.