Jet.
| 单词 | θ6581 | 
| 释义 | the world > the earth > minerals > types of mineral > hydrocarbon minerals > 			[noun]		 > coal > lignite > jet (6)		 gagatec900 Jet. jeta1398 A hard black semi-precious form of lignite, able to receive a brilliant polish and used ornamentally, esp. in Victorian mourning jewellery… agate?1483 = jet, n.2 1a. Obsolete. rare. jet stone?1545 The mineral jet (jet, n.2 1a). Obsolete. black amber1658 (a) = jet, n.2 1a; †(b) = ambergris, n. (obsolete); (c) a dark-coloured amber. Subcategories:— 			piece of			(1)		  | 
	
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