“玛瑙”英语怎么说？

agate

n.

玛瑙, 5.5点铅字

A fine-grained, fibrous variety of chalcedony with colored bands or irregular clouding.

玛瑙：颗粒均匀的纤维状玉髓的多种形式，具有彩色的条带或者不规则的云状花纹

carnelian

n.

[矿物]红玉髓, 玛瑙

n.（名词）

A pale to deep red or reddish-brown variety of clear chalcedony, used in jewelry.

光玉髓，红玉髓：明净的玉髓的一种浅色至深红或红棕色的变体，用于制珠宝