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siderite

siderite (chalybite, spathose iron) Mineral, FeCO3; sp. gr. 3.8–4.0; hardness 3.5–4.5; trigonal; grey to grey-brown or yellowish-brown, translucent when pure; white streak; vitreous lustre; uneven fracture; crystals rhombohedral with curved faces, but also occurs massive, granular, fibrous, compact, botryoidal, and earthy in habit; cleavage perfect rhombohedral {1011}; widespread in sedimentary rocks, especially clays and shales where it is concretionary and makes clay into ironstone, also as a gangue mineral in hydrothermal veins together with other metallic ores (e.g. pyrite, chalcopyrite, and galena) and as a replacement mineral in limestone; dissolves slowly in cold, dilute hydrochloric acid, which effervesces when warmed.

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"siderite." A Dictionary of Earth Sciences. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"siderite." A Dictionary of Earth Sciences. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/siderite

"siderite." A Dictionary of Earth Sciences. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/siderite

siderite

sid·er·ite / ˈsidəˌrīt/ • n. 1. a brown mineral consisting of ferrous carbonate, occurring as the main component of some kinds of ironstone or as rhombohedral crystals in mineral veins. 2. a meteorite consisting mainly of nickel and iron. DERIVATIVES: sid·er·it·ic / ˌsidəˈritik/ adj.

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"siderite." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"siderite." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/siderite

"siderite." The Oxford Pocket Dictionary of Current English. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/siderite

siderite

siderite (sĬd´ərīt) or chalybite (kăl´Ĭbīt), a mineral, varying in color from brown, green, or gray to black and occurring in nature in massive and crystalline form. A carbonate of iron, FeCO3, it serves as an iron ore, especially in the British Isles. It is widely distributed, being found also in the United States, Europe, South America, and Australia.

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"siderite." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"siderite." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/siderite

"siderite." The Columbia Encyclopedia, 6th ed.. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/siderite

siderite

siderite †loadstone XVI; various min. uses from XVIII. In early use — F. sidérite or L. sidērītēs, -ītis — Gr. sidēítēs, — îtis, f. sídēros iron; in later use f. Gr. sídēros; see -ITE.

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"siderite." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"siderite." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/siderite-0

"siderite." The Concise Oxford Dictionary of English Etymology. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/siderite-0

Siderite

Siderite

An old name for a loadstone or magnet. The term has also been variously used to indicate a steel-colored stone (possibly sapphire), a blue-colored quartz, carbonate of iron, and meteorites containing iron.

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"Siderite." Encyclopedia of Occultism and Parapsychology. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"Siderite." Encyclopedia of Occultism and Parapsychology. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/siderite

"Siderite." Encyclopedia of Occultism and Parapsychology. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/siderite