煤玉, 黑玉

a hard, black lignite, taking a brilliant polish and used for ornaments

範例:

• She wore a necklace made of polished jet. 她戴著一條用拋光煤玉製成的項鍊。 • The antique brooch was adorned with intricate carvings in jet. 這枚古董胸針上鑲嵌著精美的煤玉雕刻。 同義詞:

lignite black amber