Did you mean agate?
agate
noun
°A semi-pellucid, uncrystallized variety of quartz, presenting various tints in the same specimen, with colors delicately arranged in stripes or bands, or blended in clouds.
°A kind of type, larger than pearl and smaller than nonpareil; in England called ruby.
verb
°(obsolete) On the way; agoing; as, to be agate; to set the bells agate.