Page "Agate" Paragraph 14

Other forms of agate include Lake Superior agate, carnelian agate ( exhibiting reddish hues ), Botswana agate, blue lace agate, plume agates, moss agate, tube agate ( with visible flow channels or pinhole-sized ' tubes '), fortification agate ( which exhibit little or no banding structure ), fire agate ( which has internal flash or ' fire ', the result of a layer of clear agate over a layer of hydrothermally-deposited hematite ), Mexican crazy-lace agate, which often exhibits a brightly colored, complexly banded pattern ( also called Rodeo Agate and Rosetta Stone depending on who owned the mine at the time ).