Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p.12.

ⓘ Anglesite

Formula: PbSO₄

References:

Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 159.

ⓘ Arsenopyrite

Formula: FeAsS

References:

Chauris, L. (2014) Minéraux de Bretagne, Les Editions du Piat, 74.

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

ⓘ 'Chlorite Group'

References:

ⓘ Chloritoid

Formula: Fe²⁺Al₂O(SiO₄)(OH)₂

References:

ⓘ Cosalite

Formula: Pb₂Bi₂S₅

References:

Chauris, L. (2014) Minéraux de Bretagne, Les Editions du Piat, 74.

ⓘ Covellite

Formula: CuS

References:

ⓘ Galena

Formula: PbS

References:

Chauris, L. (2014) Minéraux de Bretagne, Les Editions du Piat, 74.

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

ⓘ Glaucophane

Formula: ◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂

References:

Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 275.

ⓘ Goethite

Formula: Fe³⁺O(OH)

References:

ⓘ Gold

Formula: Au

References:

ⓘ Quartz

Formula: SiO₂

References:

Chauris, L. (2014) Minéraux de Bretagne, Les Editions du Piat, 74.

ⓘ Scorodite

Formula: Fe³⁺AsO₄ · 2H₂O

References:

Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 172.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
Group 2 - Sulphides and Sulfosalts
ⓘ	Covellite	2.CA.05a	CuS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Galena	2.CD.10	PbS
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	Cosalite	2.JB.10	Pb₂Bi₂S₅
Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Quartz	4.DA.05	SiO₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Anglesite	7.AD.35	PbSO₄
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Scorodite	8.CD.10	Fe³⁺AsO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Chloritoid	9.AF.85	Fe²⁺Al₂O(SiO₄)(OH)₂
ⓘ	Glaucophane	9.DE.25	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂
H	ⓘ Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Anglesite	PbSO₄
O	ⓘ Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂
O	ⓘ Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Quartz	SiO₂
O	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
Mg	Magnesium
Mg	ⓘ Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂
Al	ⓘ Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂
Si	ⓘ Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
S	Sulfur
S	ⓘ Anglesite	PbSO₄
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Cosalite	Pb₂Bi₂S₅
S	ⓘ Covellite	CuS
S	ⓘ Galena	PbS
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Covellite	CuS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
As	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
Au	Gold
Au	ⓘ Gold	Au
Pb	Lead
Pb	ⓘ Anglesite	PbSO₄
Pb	ⓘ Cosalite	Pb₂Bi₂S₅
Pb	ⓘ Galena	PbS
Bi	Bismuth
Bi	ⓘ Cosalite	Pb₂Bi₂S₅

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

Armorican BasinOrogenic Belt

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Chauris, L. (2014) Minéraux de Bretagne, Les Editions du Piat, 74.

csem.morbihan.fr (n.d.) https://csem.morbihan.fr/dossiers/sigm/FicheSiteGeol16.htm

Quick NavTop Mineral List Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 7, 2026 08:40:16 Page updated: July 27, 2025 22:52:02

Go to top of page