Lepidomelane
A variety of Mica Group
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About Lepidomelane
General term for dark Fe-rich micas that have not been sufficiently well analyzed to determine the species. Generally a biotite group mineral and can include annite, tetra-ferri-annite, siderophyllite, and perhaps other species too.
Unique Identifiers
Mindat ID:
8014 (as Lepidomelane)
6728 (as Mica Group)
6728 (as Mica Group)
Long-form identifier:
mindat:1:1:8014:5 (as Lepidomelane)
mindat:1:1:6728:3 (as Mica Group)
mindat:1:1:6728:3 (as Mica Group)
Varieties of Lepidomelane
| Fluor-lepidomelane | A Fluorine-rich variety of lepidomelane (generally a dark mica of the biotite Group). |
Common Associates
Associations Based on Photo Data:
| 3 photos of Lepidomelane associated with Nepheline | Na3K(Al4Si4O16) |
| 2 photos of Lepidomelane associated with Zircon | Zr(SiO4) |
| 1 photo of Lepidomelane associated with Wöhlerite | Na2Ca4ZrNb(Si2O7)2O3F |
| 1 photo of Lepidomelane associated with Albite | Na(AlSi3O8) |
| 1 photo of Lepidomelane associated with Hainite-(Y) | Na2Ca4(Y,REE)Ti(Si2O7)2OF3 |
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.
Lepidomelane in petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
Internet Links for Lepidomelane
mindat.org URL:
https://www.mindat.org/min-8014.html
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References for Lepidomelane
Reference List:
Localities for Lepidomelane
Showing 26 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.
Brazil | |
| Leandro et al. (2022) |
Burundi | |
| Van den Haute et al. (Burundi) +6 other references |
Canada | |
| Davidson (1970) |
| www.geologyontario.mndm.gov.on.ca (n.d.) |
China | |
| Bai et al. (2025) |
DR Congo | |
| N.. Boutakoff. (1956) +7 other references |
France | |
| Lerouge et al. (2017) |
| Chauris (2014) |
| Bonin et al. (1972) +3 other references |
| Cugerone (2019) |
| Baret (1905) |
Japan | |
| Koji Koseki & Hanzo Gohara (1956) |
| Koji Koseki & Hanzo Gohara (1956) | |
| Koji Koseki & Hanzo Gohara (1956) | |
Kazakhstan | |
| Kogarko et al. (1995) |
Norway | |
| Larsen et al. (1981) |
| Åsheim (1988) |
| Berge et al. (1980) |
| Berge et al. (1980) |
Russia | |
| Filina et al. (2019) |
| Vladykin et al. (2008) |
| Kogarko et al. (1995) |
| Macdonald et al. (2022) |
| Trunilina et al. (2022) |
Spain | |
| Priem et al. (1966) +4 other references |
USA | |
| West et al. (2016) |
Faraday Township, Hastings County, Ontario, Canada