Brunsvigite
A variety of Chamosite
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About Brunsvigite
Formula:
(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
Name:
Named in 1901 by Johannes Fromme for Brunsvig region in Germany where the mineral was found.
Used by Hey (1954) in his widely used, formal classification of chlorites, for ones with Mg/(Mg+Fe) = 0.25-0.5 and Si = 5.6-6.2 atoms per 8 tetrahedral sites, but now considered a variety of chamosite.
Originally described from Gabbro Quarry (Bärenstein Quarry), Bad Harzburg, Harz Mts, Lower Saxony, Germany.
Originally described from Gabbro Quarry (Bärenstein Quarry), Bad Harzburg, Harz Mts, Lower Saxony, Germany.
Unique Identifiers
Mindat ID:
9563 (as Brunsvigite)
967 (as Chamosite)
967 (as Chamosite)
Long-form identifier:
mindat:1:1:9563:7 (as Brunsvigite)
mindat:1:1:967:2 (as Chamosite)
mindat:1:1:967:2 (as Chamosite)
IMA Classification of Brunsvigite
IMA status notes:
Rejected by the IMA
Chemistry of Brunsvigite
Mindat Formula:
(Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
Element Weights:
Other Language Names for Brunsvigite
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 Brunsvigite
mindat.org URL:
https://www.mindat.org/min-9563.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Brunsvigite
Localities for Brunsvigite
Showing 57 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.
Antarctica | |
| Plimer et al. (1983) |
Australia | |
| Ashley et al. (1997) |
| Du Puy (2003) |
Canada | |
| Denisová et al. (2023) |
China | |
| Yang et al. (2026) |
| Jianguo He et al. (2008) |
| Tian et al. (2025) |
| Youli Feng et al. (2006) |
| Lu et al. (2026) |
| Lu J et al. (2014) |
| 郭飞 et al. (2018) |
| Wang et al. (2026) |
| Sun et al. (2025) |
| Weixing Zhang et al. (2007) |
| Jianguo He et al. (2008) |
| Wang et al. (2022) |
| Miao Yu et al. (2013) |
| Letian Du and Wenguang Wang (2012) |
| Zhi Zhang et al. (2013) |
| Xu et al. (2009) |
| Zu et al. (2020) |
| Wang et al. (2024) |
| Hua Huang et al. (2014) |
| Zhen Liao et al. (2010) |
| Letian Du and Wenguang Wang (2012) |
Egypt | |
| Elsagheer et al. (2025) |
France | |
| P.G. Pelisson : "Etude Mineralogique et ... |
| Pélisson (1989) |
| Pélisson (1989) |
| Pélisson (1989) |
| P.G. Pelisson : "Etude Mineralogique et ... |
| Zahm (1987) |
Germany | |
| |
Greece | |
| Kevrekidis et al. (2024) |
India | |
| Sati et al. (2025) |
| Rout et al. (2022) |
Iran | |
| Karimpour et al. (2005) |
Mali | |
| Randgold Resources |
Oman | |
| Miyashita et al. (2016) |
Poland | |
| Gil et al. (2022) |
| Uzarowic et al. (2012) |
| Gil et al. (2019) |
| Sachanbiński et al. (2000) |
Portugal | |
| International Geological Congress (2008) |
Russia | |
| Gramenitskiy et al. (2019) |
| Zaitsev et al. (2004) |
| Ivashchenko et al. (2018, June) |
Saudi Arabia | |
| El-shafei et al. (2020) |
Turkey | |
| Sasmaz et al. (2025) |
Ukraine | |
| Sośnicka et al. (2026) |
USA | |
| Anderson (1958) |
| Anderson (1958) | |
| Heinrich et al. (2004) |
| Speer (1987) |
| Speer (1987) | |
| Speer (1987) | |
| Speer et al. (1981) |
Gabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany