Siderite is also the name of a type of iron meteorite. General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... -1...

Siderite

Siderite is a mineral composed of iron carbonate FeCO₃. It takes its name from the Greek word sideros, “iron”. It is a valuable iron mineral, since it is 48% iron and contains no sulfur or phosphorus. Both magnesium and manganese commonly substitute for the iron. Siderite (Iron Carbonate) Source: US Government File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Siderite (Iron Carbonate) Source: US Government File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Minerals are natural compounds formed through geological processes. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... In inorganic chemistry, a carbonate is a salt of carbonic acid. ... General Name, Symbol, Number sulfur, S, 16 Chemical series nonmetals Group, Period, Block 16, 3, p Appearance lemon yellow Atomic mass 32. ... This article is about the chemical element. ... General Name, Symbol, Number magnesium, Mg, 12 Chemical series alkaline earth metals Group, Period, Block 2, 3, s Appearance silvery white Atomic mass 24. ... General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7, 4, d Appearance silvery metallic Atomic mass 54. ...

Its crystals belong to the hexagonal system, and are rhombohedral in shape, typically with curved and striated faces. It also occurs in masses. Color ranges from yellow to dark brown or black, the latter being due to the presence of manganese. A regular hexagon A hexagon (also known as sexagon) is a polygon with six edges and six vertices. ... In crystallography, the rhombohedral (or trigonal) crystal system is one of the 7 lattice point groups. ... General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7, 4, d Appearance silvery metallic Atomic mass 54. ...

Siderite is commonly found in hydrothermal veins, and is associated with barite, fluorite, galena, and others. It may also be deposited by sedimentary processes. Baryte with Cerussite from Morocco Baryte with Galena and Hematite from Poland Barite (BaSO4) is a mineral consisting of barium sulfate. ... Fluorite (also called fluor-spar) is a mineral composed of calcium fluoride, CaF2. ... Galena is a lead ore. ...

Hardness: 3.5-4 Specific Gravity: 3.8 Streak: white Luster: vitreous or pearly

Also, siderite is an obsolete term for a meteorite consisting principally of nickel and iron.

(Bibliography:) The Complete Book of Science, American Education Publishing, Columbus, Ohio ©2005

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