Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Groix Island, Morbihan, Brittany, France

mindat Locality ID: 30105
mindat URL: http://www.mindat.org/loc-30105.html

Tectonic Settings:

Total number of sublocalities beneath "Groix Island, Morbihan, Brittany, France": 46
Total number of bottom-level sublocalities: 39

Number of Child Localities: 2
Child Localities:
Pivisy
Primiture

Latitude: 47°38'16"N
Longitude: 3°27'42"W
Decimal Degree (lat, lon): 47.637777777778,-3.4616666666667

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Alunite	Amphibole	Andalusite	Arsenopyrite	Baryte	Calcite	Chalcopyrite	Chlorite	Chloritoid	Clay
Clinozoisite	Copper	Coquimbite	Corundum	Covellite	Crichtonite	Diaspore	Epidote	Feldspar	Garnet
Lawsonite	Malachite	Mica	Nickeline	None	Not in a structural group	Olivine	Pyrite	Pyroxene	Quartz
Rocksalt	Rutile	Serpentine	Smectite-vermiculite	Spinel	Staurolite	Stilpnomelane	Talc	Titanite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al As Au Bi C Ca Cr Cu F Fe H K Li Mg Mn Na Ni O Pb S Si Sr Ti U V Y Zr

Elements from minerals reported directly at this locality: Al Ca F Fe H Li Mg Na Ni O S Si

Structural Groups for minerals in this locality:
Alunite Amphibole Andalusite Arsenopyrite Baryte Calcite Chalcopyrite Chlorite Chloritoid Clay
Clinozoisite Copper Coquimbite Corundum Covellite Crichtonite Diaspore Epidote Feldspar Garnet
Lawsonite Malachite Mica Nickeline None Not in a structural group Olivine Pyrite Pyroxene Quartz
Rocksalt Rutile Serpentine Smectite-vermiculite Spinel Staurolite Stilpnomelane Talc Titanite Zircon

70 IMA Minerals at location:

Actinolite ()*	Albite ()*	Almandine ()*	Anatase ()*	Andalusite ()*
Anglesite ()*	Antigorite ()*	Arsenopyrite ()*	Barroisite ()*	Beidellite ()*
Bornite ()*	Calcite ()*	Chalcopyrite ()*	Chloritoid ()*	Chrysotile ()*
Clinochlore ()*	Clinozoisite ()*	Coquimbite ()*	Corundum ()*	Cosalite ()*
Covellite ()*	Crichtonite ()*	Deerite ()*	Dolomite ()*	Epidote ()*
Ferro-glaucophane ()*	Forsterite ()*	Galena ()*	Glaucophane ()*	Goethite ()*
Gold ()*	Graphite ()*	Greenalite ()*	Grossular ()*	Grunerite ()*
Hectorite ()*	Hematite ()*	Ilmenite ()*	Jacobsite ()*	Jadeite ()*
Jarosite ()*	Kyanite ()*	Lawsonite ()*	Magnetite ()*	Malachite ()*
Manganite ()*	Muscovite ()*	Omphacite ()*	Paragonite ()*	Piemontite ()*
Pyrite ()*	Pyrolusite ()*	Pyroxmangite ()*	Pyrrhotite ()*	Quartz ()*
Rutile ()*	Saponite ()*	Scorodite ()*	Siderite ()*	Sillimanite ()*
Smythite ()*	Spessartine ()*	Spinel ()*	Staurolite ()*	Stilpnomelane ()*
Talc ()*	Tephroite ()*	Titanite ()*	Vermiculite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1	53242	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	16	53242,53247,53248,53249,53251,53254,53255,53263,53265,53270,53271,53272,53273,53274,53281,53284	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	8	53263,53265,53270,53271,53272,53273,53274,53281	2353
Anatase ()*	Not in a structural group	TiO₂	2	53264,53272	2162
Andalusite ()*	Andalusite	Al₂SiO₅	4	53264,53275,53276,53283	1310
Anglesite ()*	Baryte	Pb(SO₄)	1	53284	2734
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	53254	708
Arsenopyrite ()*	Arsenopyrite	FeAsS	1	53284	9052
Barroisite ()*	Amphibole	(NaCa)(Mg₃Al₂)(Si₇Al)O₂₂(OH)₂	0		49
Beidellite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3Al₂(Si,Al)₄O₁₀(OH)₂·nH₂O	0		85
Bornite ()*	None	Cu₅FeS₄	1	53242	5516
Calcite ()*	Calcite	Ca(CO₃)	2	53242,53248	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	4	53242,53256,53279,53284	27198
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂	13	53243,53246,53255,53258,53259,53264,53266,53269,53273,53274,53277,53283,53284	376
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	53254	951
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	3	53242,53255,53269	1756
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1	53266	1025
Coquimbite ()*	Coquimbite	AlFe₃(SO₄)₆(H₂O)₁₂·6H₂O	0		136
Corundum ()*	Corundum	Al₂O₃	3	53264,53276,53283	1797
Cosalite ()*	None	Pb₂Bi₂S₅	1	53284	344
Covellite ()*	Covellite	CuS	1	53284	4165
Crichtonite ()*	Crichtonite	Sr(Mn,Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	1	53273	27
Deerite ()*	None	Fe²⁺₆Fe³⁺₃(Si₆O₁₇)O₃(OH)₅	1	53260	27
Dolomite ()*	None	CaMg(CO₃)₂	3	53242,53254,53265	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	15	53240,53245,53251,53253,53258,53264,53265,53266,53268,53270,53273,53275,53276,53277,53283	8173
Ferro-glaucophane ()*	Amphibole	Na₂(Fe²⁺₃Al₂)Si₈O₂₂(OH)₂	0		26
Forsterite ()*	Olivine	Mg₂(SiO₄)	1	53264	1188
Galena ()*	Rocksalt	PbS	1	53284	24243
Glaucophane ()*	Amphibole	Na₂(Mg₃Al₂)Si₈O₂₂(OH)₂	25	53240,53244,53248,53249,53251,53252,53253,53258,53260,53264,53266,53267,53268,53269,53271,53272,53273,53274,53275,53276,53277,53281,53282,53283,53284	286
Goethite ()*	Diaspore	FeO(OH)	3	53244,53254,53284	7437
Gold ()*	Copper	Au	1	53284	30554
Graphite ()*	None	C	3	53249,53255,53262	2812
Greenalite ()*	Clay Serpentine	(Fe²⁺,Fe³⁺)_2-3Si₂O₅(OH)₄	1	53254	61
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	1	53265	1544
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	1	53260	223
Hectorite ()*	Clay	Na_0.3(Mg,Li)₃Si₄O₁₀(F,OH)₂·nH₂O	0		19
Hematite ()*	Corundum	Fe₂O₃	10	53255,53256,53258,53264,53265,53266,53273,53274,53277,53281	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	11	53242,53246,53256,53261,53262,53264,53273,53274,53275,53276,53283	5433
Jacobsite ()*	Spinel	Mn²⁺Fe³⁺₂O₄	1	53265	172
Jadeite ()*	Pyroxene	NaAlSi₂O₆	3	53259,53266,53279	154
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	1	53256	2228
Kyanite ()*	Not in a structural group	Al₂OSiO₄	2	53264,53283	1507
Lawsonite ()*	Lawsonite	CaAl₂(Si₂O₇)(OH)₂·H₂O	7	53253,53258,53259,53260,53270,53274,53281	121
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	9	53241,53242,53254,53256,53264,53269,53275,53276,53283	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	53242	12537
Manganite ()*	Rutile	Mn³⁺O(OH)	1	53241	770
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	5	53242,53266,53273,53274,53279	17380
Omphacite ()*	Pyroxene	(Ca,Na)(Mg,Fe,Al)Si₂O₆	2	53268,53274	229
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂	2	53240,53273	247
Piemontite ()*	Epidote	Ca₂(Al₂Mn³⁺)[Si₂O₇][SiO₄]O(OH)	1	53265	260
Pyrite ()*	Pyrite	FeS₂	6	53241,53253,53256,53264,53275,53283	39462
Pyrolusite ()*	Rutile	MnO₂	3	53241,53242,53244	3106
Pyroxmangite ()*	None	Mn²⁺SiO₃	1	53265	147
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	53256	9056
Quartz ()*	Quartz	SiO₂	14	53242,53244,53246,53249,53251,53252,53255,53259,53265,53272,53273,53279,53281,53284	61156
Rutile ()*	Rutile	TiO₂	13	53240,53242,53259,53264,53266,53269,53272,53273,53275,53276,53280,53281,53283	5614
Saponite ()*	Clay Smectite-vermiculite	(Ca,Na)_0.3(Mg,Fe)₃(Si,Al)₄O₁₀(OH)₂·4H₂O	0		301
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	1	53284	1153
Siderite ()*	Calcite	Fe(CO₃)	5	53242,53246,53252,53255,53256	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅	2	53264,53283	1516
Smythite ()*	None	(Fe,Ni)_3+xS₄ (x ≈ 0-0.3)	0		77
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	5	53265,53270,53274,53278,53281	1214
Spinel ()*	Spinel	MgAl₂O₄	1	53264	1934
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	4	53264,53275,53276,53283	978
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	3	53269,53278,53281	456
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	53241	3337
Tephroite ()*	Olivine	Mn²⁺₂(SiO₄)	1	53265	240
Titanite ()*	Titanite	CaTi(SiO₄)O	8	53242,53258,53259,53264,53275,53276,53277,53281	4899
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	0		652
Zircon ()*	Zircon	Zr(SiO₄)	4	53264,53275,53276,53283	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...