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Siderite 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 is commonly found in hydrothermal veins, and is associated with barite, fluorite, galena, and others. It may also be deposited by sedimentary processes.
FeCO3 - Iron Carbonate
Class:
Group:
Calcite Group
Yellow, brown, black
Yellowish-white
Vitreous
Translucent
4
4
Perfect
Uneven to conchoidal
Rhombohedral crystals, granular, massive.
Non-fluorescent
Frequency:
Abundant
Origin:
Hydrothermal in medium and low tempurature deposits, sedimentary.
Occurence:
Mont St.-Hilaire, Quebec, Canada; Panasqueira, Portugal; Neudorf, Germany; Pikes Peak, Colorado, USA; Tavistock, Devon and Redruth, Cornwall, United Kingdom.
Application:
Important Iron ore, mineral specimen.

 
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