Associations to the word «Biotite»

Wiktionary

BIOTITE, noun. (mineral) A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron.

Dictionary definition

BIOTITE, noun. Dark brown to black mica found in igneous and metamorphic rock.

Wise words

Wisdom does not show itself so much in precept as in life - in firmness of mind and a mastery of appetite. It teaches us to do, as well as talk, and to make our words and actions all of a color.
Lucius Annaeus Seneca