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siderite

n. 菱铁矿,陨铁

菱铁矿,陨铁

WordNet (r) 3.0 (2006) (WordNet)

siderite
n 1: iron ore in the form of ferrous carbonate [synonym: {siderite},
{chalybite}]
2: a meteorite consisting principally of nickel and iron

The Collaborative International Dictionary of English v.0.48 (gcide)

Siderite \Sid"er*ite\, n. [L. sideritis loadstone, Gr. ????,
????, 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
brown color. Called also {sparry iron}, {spathic
iron}.
(b) A meteorite consisting solely of metallic iron.
(c) An indigo-blue variety of quartz.
(d) Formerly, magnetic iron ore, or loadstone.
[1913 Webster]

2. (Bot.) Any plant of the genus {Sideritis}; ironwort.
[1913 Webster] Siderographic

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Siderite - Wikipedia
Siderite is a mineral composed of iron (II) carbonate (FeCO 3) Its name comes from the Ancient Greek word σίδηρος (sídēros), meaning "iron" A valuable iron ore, it consists of 48% iron and lacks sulfur and phosphorus
Siderite: Mineral information, data and localities.
Most often found in bedded sedimentary deposits with a biological component, with shales, clays and coal beds - suggesting that the siderite is biogenically created under low-oxygen and low-Ph conditions
Siderite Mineral: Composition, Crystal Structure, and Geological . . .
Siderite is both an iron ore and gangue mineral Its principal economic value lies in its high iron content and the absence of process contaminants such as sulfur or phosphorous
Siderite | Iron Carbonate, Carbonate Minerals, Sedimentary Rocks . . .
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 sedimentary deposits) and in hydrothermal metallic veins (as gangue, or waste rock)
Siderite Mineral Data
Siderite Arsenopyrite Comments: White, metallic arsenopyrite and tan siderite crystals Location: Panasqueira (2000, 3rd level), in the region of Beira Baixa, Portugal Scale: 11 x 7 cm © Fabre Minerals Images: Siderite Comments: Blocky siderite crystals on quartz Location: Panasqueira (2nd level), in the region of Beira Baixa, Portugal
Siderite - Details and Facts - allmineralsrock
Siderite, also known as iron carbonate, is a mineral that is commonly found in sedimentary rocks such as limestone and shale It typically forms in low-temperature hydrothermal veins and can also be found in hot springs and as a precipitate in lakes and oceans
Siderite - HyperPhysics
Siderite is a member of the calcite group of carbonates along with rhodochrosite and Smithsonite Siderite is a minor ore of iron Its name derives from sideros, the Greek word for iron Looking profoundly different from the sample above, this siderite is from Baia Sprie, Crisana-Maramures, Romania and measures about 12x14 cm
Siderite – WGNHS – UW–Madison
Siderite forms as a sedimentary precipitate, in hydrothermal veins, in metamorphic rocks formed from such protoliths, and, rarely, in pegmatites In sedimentary environments it forms in extensive beds of banded iron formations and as more localized deposits of bog-iron ore
Siderite: A Window into Earths Past - numberanalytics. com
Siderite, a mineral composed of iron carbonate (FeCO3), has been a subject of interest in geological research due to its unique properties and the valuable information it provides about the Earth's past
Siderite: The Iron Mineral with Mysterious Floaters
Siderite forms in cavities of sedimentary and metamorphic rocks, often in association with other iron minerals Its chemical composition is FeCO3, and its color ranges from white to light brown

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