Breunnerite
A variety of 'Iron-bearing Magnesite' [Magnesite]
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About Breunnerite
Formula:
(Mg,Fe)CO3
Name:
Named by Haidinger in honour of Count (Graf) August Breunner (family name also given as Breuner) (born 30 June 1796, died 23 April 1877 in Vienna, Austria), an Austrian Ministerialrat (high-ranking state official) and collector of minerals and fossils.
Obsolete name for an Fe-bearing variety of magnesite with the Mg:Fe atomic ratio ranging from 90:10 to 70:30.
Compare mesitine spar.
Originally reported from Pfitsch pass, Zamser Grund (Zams valley), Ziller valley, North Tyrol, Tyrol, Austria and Großer Greiner Mt., Zemmgrund, Ziller valley, North Tyrol, Tyrol, Austria.
Compare mesitine spar.
Originally reported from Pfitsch pass, Zamser Grund (Zams valley), Ziller valley, North Tyrol, Tyrol, Austria and Großer Greiner Mt., Zemmgrund, Ziller valley, North Tyrol, Tyrol, Austria.
Unique Identifiers
Mindat ID:
7873 (as Breunnerite)
2482 (as Magnesite)
2482 (as Magnesite)
Long-form identifier:
mindat:1:1:7873:9 (as Breunnerite)
mindat:1:1:2482:8 (as Magnesite)
mindat:1:1:2482:8 (as Magnesite)
Similar Names
| Brannerite | A valid IMA mineral species - grandfathered | UTi2O6 |
| Braunerite | A valid IMA mineral species - pending publication | K2Ca(UO2)(CO3)3 · 6H2O |
| Brunnerite | A synonym of 'Prunnerite' |
Chemistry of Breunnerite
Mindat Formula:
(Mg,Fe)CO3
Element Weights:
Elements listed:
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 2: Planetesimal differentiation and alteration | 4.566-4.550 |
| 6 : Secondary asteroid phases | 4.566-4.560 |
Synonyms of Breunnerite
Other Language Names for Breunnerite
German:Breunnerit
Spanish:Breunnerita
Common Associates
Associations Based on Photo Data:
| 7 photos of Breunnerite associated with Talc | Mg3Si4O10(OH)2 |
| 7 photos of Breunnerite associated with Quartz | SiO2 |
| 3 photos of Breunnerite associated with Aragonite | CaCO3 |
| 2 photos of Breunnerite associated with Lazulite | MgAl2(PO4)2(OH)2 |
| 2 photos of Breunnerite associated with Wagnerite | Mg2(PO4)F |
| 2 photos of Breunnerite associated with Calcite | CaCO3 |
| 1 photo of Breunnerite associated with Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| 1 photo of Breunnerite associated with Pyrite | FeS2 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Breunnerite
mindat.org URL:
https://www.mindat.org/min-7873.html
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References for Breunnerite
Reference List:
www.mineralienatlas.de (n.d.) https://www.mineralienatlas.de/lexikon/index.php/Breunner,%20August%20Graf?lang=en&language=english
Mitchell, Roger H. (2025) Recommendations for the Terminology of Carbonates in the Ternary System CaCO3–MgCO3–FeCO3 with Reference to Ankerite, “Breunnerite”, the Magnesite–Siderite Solid Solution Series, and Carbonatite Nomenclature. The Canadian Journal of Mineralogy and Petrology, 63 (4). 319-323 doi:10.3749/2500029
Localities for Breunnerite
Showing 120 localities.
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Algeria | |
| Endress et al. (1994) |
Australia | |
| Marston (1984) +1 other reference |
| Simpson (1948) |
| Simpson (1948) |
| Simpson (1948) |
| Simpson (1948) |
Austria | |
| Anglberger (1984) |
| Meixner (1957) |
| H. Meixner: Carinthia II 165./85.:15 (1975) |
| Neschen (n.d.) |
| Friedrich (1963) +1 other reference |
| Strasser (1989) | |
| Neschen (n.d.) |
| Neschen (n.d.) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) | |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) | |
| Mrazek (1992) | |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) | |
| Strasser (1989) |
| Köchel (Ritter von) |
| Strasser (1989) | |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) | |
| Tornquist (1927) |
| Seewann (1929) |
| Spötl (1989) |
| Exel (1982) |
| Vohryzka (1968) |
| Exel (1982) |
| Cathrein (1887) +1 other reference |
| Exel (1993) | |
| Exel (1993) | |
| Exel (1993) | |
| Vohryzka (1968) +1 other reference |
| Coll. G. Brandstetter |
Brazil | |
| Traversa et al. (2001) +2 other references |
| Traversa et al. (2001) | |
| Lobato et al. (2001) |
Canada | |
| Tappe et al. (2004) |
| Mielke (n.d.) |
| Econ Geol (1986) |
| Pavel M. Kartashov analytical data of ... |
Egypt | |
| Tosson et al. (1974) |
| Shimron (1975) +2 other references |
| Bogoch et al. (1982) +1 other reference | |
France | |
| Maurizot et al. (2020) |
| Nagy et al. (1964) +2 other references |
India | |
| Rock et al. (1992) |
| Magnus Endress et al. (1994) |
Italy | |
| Exel (1987) |
| Exel (1987) | |
| van Houten (1930) |
| Gartner et al. (2002) |
Mongolia | |
| Kovalenko et al. (2004) |
Norway | |
| Selbekk et al. (1995) |
| Selbekk et al. (1995) |
| Briani et al. (2012) |
Poland | |
| Lis et al. (1986) |
Portugal | |
| Dep Ciencias Terra FCT Universidade ... |
Russia | |
| Ripp et al. (2017) |
| Kolesnichenko |
| Rusinov et al. (2008) |
| Goryachev et al. (2008) |
| Grigor’eva et al. (2018) |
| Mishainik |
| Pavel M. Kartashov (n.d.) | |
| Palyanova et al. (2018) |
Slovakia | |
| Ďuďa R. et al. (1993) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Juraj Majzlan et al. (2021) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) |
| Koděra et al. (1986) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) | |
South Korea | |
| Hideo Tsuda (1969) |
Spain | |
| Rosell et al. (2006) |
Sweden | |
| Durietz. T (1935) |
Switzerland | |
| Kipfer (1974) |
| Parker et al. (1973) | |
Tanzania | |
| Endress et al. (1993) |
Ukraine | |
| Cuney et al. (2012) |
USA | |
| Briani et al. (2012) |
| King (n.d.) |
| King (n.d.) | |
| Ostrander et al. (1940) +1 other reference |
| Genth et al. (1881) |
| Bentzen et al. (1973) | |
| Genth et al. (1881) | |
| Sloto (2019) |
| Samuel S. Gordon +1 other reference |
| Briani et al. (2012) |
162173 Ryugu | |
Outer Space | |
| Lauretta et al. (2024) |
Rosenau am Hengstpaß, Kirchdorf an der Krems District, Upper Austria, Austria