
1) Beautiful stone 2) Chalybite 3) Cut mineral 4) Decorative stone 5) Gemstone mineral 6) Gemstone 7) Iron carbonate 8) Iron mineral 9) Iron ore 10) Iron ore 11) Jewel mineral 12) Jewel 13) Mineral gemstone 14) Mineral jewel 15) Ore of iron 16) Polished mineral 17) Polished jewel 18) Precious stone
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https://www.crosswordclues.com/clue/siderite

1) Chalybite 2) Ironstone
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https://www.crosswordclues.com/clue/siderite

- iron ore in the form of ferrous carbonate
- a meteorite consisting principally of nickel and iron
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Siderite is a mineral composed of iron(II) carbonate (FeCO3). 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 or phosphorus. Zinc, magnesium and manganese commonly substitute for the iron resulting in the siderite-smithsonite, siderite-magnesite an.....
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http://en.wikipedia.org/wiki/Siderite

• (n.) 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. Called also sparry iron, spathic iron. • (n.) Formerly, magnetic iron ore, or loadstone. • (n.) An indigo-blue variety of quartz. • (n.) A meteorite consisting sole...
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http://thinkexist.com/dictionary/meaning/siderite/

iron carbonate (FeCO3), a widespread mineral that is an ore of iron. The mineral commonly occurs in thin beds with shales, clay, or coal seams (as ... [1 related articles]
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http://www.britannica.com/eb/a-z/s/91

1. <chemical> 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 colour. Called also sparry iron, spathic iron. A meteorite consisting solely of metallic iron. ... An indigo-blue variety of quartz. ... Formerly, magnetic iron ore, or loadstone...
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http://www.encyclo.co.uk/local/20973
Sid'er·ite noun [ Latin
sideritis loadstone, Greek ............, ............, of iron, from ............ iron.]
1. (Min.) (a) Carbonate of iron, an important ore of iron occuring generally in cleavable masses, but also in rhombohedral crystals. It is of a light yellowish b...
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http://www.encyclo.co.uk/webster/S/99

An orangish to black or brown mineral, FeCO3.
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http://www.lpi.usra.edu/publications/slidesets/marslife/glossary.shtml

Siderite is native iron carbonate, an ore of iron that becomes magnetic when heated. It is frequently found as an impure admixture with clay materials and also in concretions with concentric layers. It has a relative hardness of 5.
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http://www.probertencyclopaedia.com/browse/HS.HTM

A mineral, also called ironstone, composed of iron carbonate FeCO3.
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http://www.scientificpsychic.com/etc/geology-glossary.html

Iron(II) carbonate
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http://www.translationdirectory.com/glossaries/glossary075.htm

Also called ironstone, that is a concretion of iron carbonate. Common in the Mazon Creek fossil beds.
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http://www.ucmp.berkeley.edu/glossary/gloss2geol.html

Also called ironstone, that is a concretion of iron carbonate. Common in the Mazon Creek fossil beds.
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http://www.ucmp.berkeley.edu/glossary/glossary_2.html

[
n] - iron ore in the form of ferrous carbonate 2. [n] - a meteorite consisting principally of nickel and iron
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http://www.webdictionary.co.uk/definition.php?query=siderite
chalybite noun iron ore in the form of ferrous carbonate
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https://www.encyclo.co.uk/local/20974

Iron carbonate, which when pure, contains 48.2% iron; must be roasted to drive off carbon dioxide before it can be used in a blast furnace. (Roasted product is called sinter.)
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https://www.encyclo.co.uk/local/22734
(Iron Carbonate) Siderite is named for the Greek word for iron,
sideros. The word siderite is used in a number of rarer minerals and except in the fact that they all contain iron, they are otherwise unrelated to siderite. They include: Alumopharmacosiderite , arseniosiderite , barium-alumopharmacosiderite , b...
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https://www.encyclo.co.uk/local/23719
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