Definitions

from The Century Dictionary and Cyclopedia

  • n. In petrography, a variety of basalt comparatively rich in potash, having phenocrysts of labradorite with variable amounts of augite and olivin, in a ground-mass containing labradorite and orthoclase, with pyroxene, magnetite, etc. It grades into absarokite with increase of augite and olivin and decrease in labradorite.

Etymologies

Sorry, no etymologies found.

Examples

Sorry, no example sentences found.

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.