agates

一种半透明、非结晶的硅酸盐矿物和半宝石,同一标本中呈现各种色调,颜色精巧排列,常呈平行的深浅交替条纹或条带,或云状交融；各种权威称其为玉髓的一种、石英的一种,或两者的结合。

A semitransparent, uncrystallized silicate mineral and semiprecious stone, presenting various tints in the same specimen, with colors delicately arranged and often curved in parallel alternating dark and light stripes or bands, or blended in clouds; various authorities call it a variety of chalcedony, a variety of quartz, or a combination of the two.

一种不纯的石英形式,由带状玉髓组成；用作宝石和制作研钵和杵

an impure form of quartz consisting of banded chalcedony; used as a gemstone and for making mortars and pestles

一英寸的十四分之一。

One fourteenth of an inch.

金线拉制工、装订工等使用的工具；因其中嵌有用于抛光的玛瑙而得名。

A tool used by gold-wire drawers, bookbinders, etc.;—so called from the agate fixed in it for burnishing.

用玛瑙制成的弹珠。

A marble made from agate.