Definitions

from The Century Dictionary and Cyclopedia

  • In petrography, in the quantitative classification of igneous rocks (see rock), having equal or nearly equal proportions of tilic minerals (normative titan-ite, ilmenite, perofskite, rutile) and hemic minerals (normative magnetite and hematite), that is, within the limits .

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.