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Valuable iron ore
Answer for the clue "Valuable iron ore ", 8 letters:
siderite
Alternative clues for the word siderite
Word definitions for siderite in dictionaries
WordNet
Word definitions in WordNet
n. iron ore in the form of ferrous carbonate [syn: chalybite ] a meteorite consisting principally of nickel and iron
Wiktionary
Word definitions in Wiktionary
n. 1 (context uncountable mineral English) a widespread brown mineral, FeCO 3 , having the structure of calcite 2 (context countable English) an iron meteorite 3 An indigo-blue variety of quartz. 4 (context obsolete English) magnetic iron ore; lodestone
Wikipedia
Word definitions in Wikipedia
Siderite is also the name of a type of iron meteorite . Siderite is a mineral composed of iron(II) carbonate (FeCO). It takes its name from the Greek word σίδηρος sideros, “iron”. It is a valuable iron mineral, since it is 48% iron and contains no sulfur ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Siderite \Sid"er*ite\, n. [L. sideritis loadstone, Gr. ????, ????, of iron, from ???? iron.] (Min.) Carbonate of iron, an important ore of iron occuring generally in cleavable masses, but also in rhombohedral crystals. It is of a light yellowish brown color. ...
Usage examples of siderite.
Even at night the men were digging out the siderite chunks, hauling up pieces of the nickel-iron.
There was a very large supply of siderite masses left yet, so Sam was not worried about running out of it.
Then he had heard about the mining of the siderite and the great Riverboat and its orchestra with piano, violin, flute, horns, and all the other beautiful instruments that he had known on Earth, plus others that had been invented since his death in 1791.
Forgers usually favored calcites and siderites to produce the characteristic pale or red-black luster of common fossils.