banded ore

banded ore

[′ban·dəd ′ȯr]
(geology)
Ore made up of layered bands composed either of the same minerals that differ from band to band in color or textures or proportion, or of different minerals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
"Anywhere you have greenstone belts or sedimentary basins, you get these banded ore formations that go and go for kilometres along strike length."