... a few of the rubies and sapphires the next morning but they gathered more of the diamonds, looking in particular for the gray-black and ugly but very hard and tough carbonado variety. Then they resumed their ... — Space Prison • Tom Godwin
... Mascarenhas might have taught you better," said he, "than to play this game." And then added with a grim smile, "But we'll see if an Englishman will not make as good a carbonado as ... — Charles O'Malley, The Irish Dragoon, Volume 2 (of 2) • Charles Lever