Breislakite
A variety of Vonsenite
This page is currently not sponsored. Click here to sponsor this page.
About Breislakite
Formula:
Fe2+2Fe3+(BO3)O2
A fibrous variety of vonsenite.
It was originally named by Brocchi in 1817 for a mineral high in iron and containing manganese, occurring in wool-like forms from Vesuvius and Capo di Bove. It was referred to at various times as pyroxene, amphibole, fayalite, and ilvaite.
Analysis and x-ray study, including a detailed study of the structure, show that it is an iron-rich member (MgO 3.22%) of the ludwigite-vonsenite series.
It was originally named by Brocchi in 1817 for a mineral high in iron and containing manganese, occurring in wool-like forms from Vesuvius and Capo di Bove. It was referred to at various times as pyroxene, amphibole, fayalite, and ilvaite.
Analysis and x-ray study, including a detailed study of the structure, show that it is an iron-rich member (MgO 3.22%) of the ludwigite-vonsenite series.
Unique Identifiers
Mindat ID:
7460 (as Breislakite)
4207 (as Vonsenite)
4207 (as Vonsenite)
Long-form identifier:
mindat:1:1:7460:1 (as Breislakite)
mindat:1:1:4207:5 (as Vonsenite)
mindat:1:1:4207:5 (as Vonsenite)
IMA Classification of Breislakite
Discredited
First published:
1817
Chemistry of Breislakite
Mindat Formula:
Fe2+2Fe3+(BO3)O2
Elements listed:
Common Associates
Associated Minerals Based on Photo Data:
| 1 photo of Breislakite associated with Smectite Group | A0.3D2-3[T4O10]Z2 · nH2O |
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 Breislakite
mindat.org URL:
https://www.mindat.org/min-7460.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
References for Breislakite
Localities for Breislakite
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.
Italy | |
| Monticelli et al. (1825) +1 other reference |
| Vik Vanrusselt collection |




symbol to view information about a locality.
The
Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Lazio, Italy