Banded iron formation
A rock classification type
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About Banded iron formation
Commonly termed BIFs by geologists, they are iron-rich rocks almost always of Precambrian age, predominantly associated with the great oxygenation event (GOE) about 2.3-2.8 billion years ago. It typically consists of repeated, thin iron oxide layers (a few mm to a few cm in thickness) but may be banded from a microscopic to a metre scale. The oxide bands are dark grey to to black magnetite (Fe3O4) or hematite (Fe2O3), alternating with bands of iron-poor shales and cherts, usually red in color, of similar thickness, or iron rich silicates and carbonates, including siderite, ankerite, riebeckite, stilpnomelane, minnesotaite, etc. They provide our major source of iron ore, usually after upgrading by various hypogene and supergene processes.
Yin et al (2023)
Types of Banded Iron Formations | ||||||||||||||||||||
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Yin et al (2023)
Unique Identifiers
Mindat ID:
51456
Long-form identifier:
mindat:1:1:51456:3
GUID
(UUID V4):
(UUID V4):
a24e2c48-ca30-428f-9f55-9370654f954f
Classification of Banded iron formation
Sub-divisions of Banded iron formation
- Banded iron formation
Synonyms of Banded iron formation
Banded ironstone (in part)
Common Associates
Associated Minerals Based on Photo Data:
Internet Links for Banded iron formation
mindat.org URL:
https://www.mindat.org/min-51456.html
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References for Banded iron formation
Reference List:
Localities for Banded iron formation
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Australia | |
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[Jaspillite] | |
[Jaspillite] | |
Botswana | |
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Brazil | |
| [itabirite] |
| [itabirite] |
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| [Jaspillite] |
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[itabirite] | |
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[itabirite] | |
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[itabirite] | |
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[Jaspillite] | |
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Cameroon | |
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Canada | |
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| [Jaspillite] |
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[Jaspillite] | |
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| [Banded-ferruginous chert] |
| [Banded-ferruginous chert] |
| [Jaspillite] |
| [Banded-ferruginous chert] |
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China | |
| [Jaspillite] |
| [itabirite] |
| Zeng, Tao, Tang, Li, Wang, Han-Hui, Santosh, M., Sheng, Yuan-Ming (2023) The Paleoproterozoic Zhaigou banded iron formation in the Fuping Complex, North China Craton: Geochemistry, geochronology and implications for genesis and tectonic setting. Ore Geology Reviews, 154. 105314 doi:10.1016/j.oregeorev.2023.105314 |
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Egypt | |
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Finland | |
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Gabon | |
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Ghana | |
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Greece | |
| Kilias, Stephanos P., Ivarsson, Magnus, Chi Fru, Ernest Chi, Rattray, Jayne E., Gustafsson, Håkan, Naden, Jonathan, Detsi, Kleopatra (2020) Precipitation of Mn Oxides in Quaternary Microbially Induced Sedimentary Structures (MISS), Cape Vani Paleo-Hydrothermal Vent Field, Milos, Greece. Minerals, 10 (6) 536 doi:10.3390/min10060536 |
Guyana | |
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India | |
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Indonesia | |
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Ireland | |
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Kenya | |
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Mauritania | |
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[Jaspillite] | |
| [itabirite] |
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Republic of the Congo | |
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Russia | |
| [Jaspillite] |
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[Jaspillite] | |
Serbia | |
| [itabirite] |
Slovakia | |
| [Jaspillite] |
South Africa | |
| Schapira, Jessica Shaye, Bolhar, Robert, Master, Sharad, Wilson, Allan H. (2023) Mineralogical, Petrological and Geochemical Characterisation of Chrysotile, Amosite and Crocidolite Asbestos Mine Waste from Southern Africa in Context of Risk Assessment and Rehabilitation. Minerals, 13 (10) doi:10.3390/min13101352 |
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| Schapira, Jessica Shaye, Bolhar, Robert, Master, Sharad, Wilson, Allan H. (2023) Mineralogical, Petrological and Geochemical Characterisation of Chrysotile, Amosite and Crocidolite Asbestos Mine Waste from Southern Africa in Context of Risk Assessment and Rehabilitation. Minerals, 13 (10) doi:10.3390/min13101352 |
Sweden | |
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[Jaspillite] | |
Tanzania | |
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Uganda | |
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Ukraine | |
[Jaspillite] | |
USA | |
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[Banded-ferruginous chert] | |
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[Jaspillite] | |
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| [Banded-ferruginous chert] |
[Banded-ferruginous chert] | |
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| [Jaspillite] |
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Zimbabwe | |
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Jasper Hill, Ishpeming, Marquette County, Michigan, USA