Babingtonite n. : A mineral occurring in triclinic crystals approaching pyroxene in angle, and of a greenish black color. It is a silicate of iron, manganese, and lime.

Example:


Taxonomy
Babingtonite, mineral, free encyclopedia, iron, dark green, Prismatic crystals, Iron minerals, silicate minerals, mineral emblem, search, Manganese minerals, Tenacity, Brittle, Vitreous, aluminium, mindat, webmineral, Calcium.

Defination from the web:
Babingtonite is a calcium iron manganese inosilicate mineral with the formula Ca 2(Fe,Mn)FeSi 5O 14(OH) ... Babingtonite · Bixbite · Braunite · Brownleeite · Calderite · Chloritoid · Eudialyte · Glaucochroite · Jeffersonite · Knebelite · Ottrelite ...