rhodochrosite

rhodochrosite
/roh'deuh kroh"suyt/, n.
a mineral, manganese carbonate, MnCO3, commonly containing some iron and calcium, and usually rose-red in color: a minor ore of manganese; manganese spar. Also called dialogite.
[1830-40; < Gk rhodóchros rose-colored (rhódo(n) RHODO- + chrós color; cf. CHROMA) + -ITE1]

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Carbonate mineral composed of manganese carbonate (MnCO3), a source of manganese for the ferromanganese alloys used in steel production.

It is commonly found in ore veins formed at moderate temperatures, in high-temperature metamorphic deposits, and in sedimentary deposits.

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      (Greek: Rose Coloured), mineral composed of manganese carbonate (MnCO3) that is a source of manganese for the ferromanganese alloys used in steel production. It is commonly found in ore veins formed at moderate temperatures, in high-temperature metamorphic deposits, and in sedimentary deposits. Notable localities are Cavnic, Romania; and Butte, Mont., and Leadville, Colo., in the United States. Magnesium, iron, and calcium are generally partially substituted for manganese, pure rhodochrosite being relatively rare; rhodochrosite forms a partial solid-solution (chemical substitution) series with calcite and with siderite in which calcium and iron, respectively, replace manganese in the crystal structure. For detailed physical properties, see carbonate mineral (table).

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Universalium. 2010.

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  • rhodochrosite — noun Etymology: German Rhodocrosit, from Greek rhodochrōs rose colored, from rhod + chrōs color more at chromatic Date: 1836 a rose red mineral consisting essentially of manganese carbonate …   New Collegiate Dictionary

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  • rhodochrosite — rho·do·chro·site …   English syllables

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