Mineral Evolution Database

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

Mineral locality data provided by mindat.org

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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:
Bontddu, Dolgellau Gold Belt, Gwynedd, Wales, UK

mindat Locality ID: 23538
mindat URL: http://www.mindat.org/loc-23538.html

Tectonic Settings:

Total number of sublocalities beneath "Bontddu, Dolgellau Gold Belt, Gwynedd, Wales, UK": 7
Total number of bottom-level sublocalities: 6

Number of Child Localities: 6
Child Localities:
Bryn Castell Mine
Clogau St Davids Mine (Clogau Mine; St David's Mine)
Garthgell Mine
Graigwen Mine (Nant-Goch Mine)
High Diffwys
Vigra Mine

Latitude: 52°45'50"N
Longitude: 3°58'42"W
Decimal Degree (lat, lon): 52.763888888889,-3.9783333333333

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.

Allophane	Aragonite	Arsenic	Arsenopyrite	Baryte	Bournonite	Brochantite	Calcite	Chalcoalumite	Chalcophyllite
Chalcopyrite	Cobaltite	Copper	Corundum	Covellite	Devilline	Gypsum	Malachite	Molybdenite	Nickeline
None	Not in a structural group	Pentlandite	Pyrite	Quartz	Rhodonite	Rocksalt	Rutile	Sphalerite	Stibnite
Tetradymite	Tetrahedrite	Tyrolite	Vivianite

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: Ag Al As Au Ba Bi C Ca Co Cu Fe H Mg Mn Mo Ni O Pb S Sb Si Te Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Aragonite Arsenic Arsenopyrite Baryte Bournonite Brochantite Calcite Chalcoalumite Chalcophyllite
Chalcopyrite Cobaltite Copper Corundum Covellite Devilline Gypsum Malachite Molybdenite Nickeline
None Not in a structural group Pentlandite Pyrite Quartz Rhodonite Rocksalt Rutile Sphalerite Stibnite
Tetradymite Tetrahedrite Tyrolite Vivianite

53 IMA Minerals at location:

Aleksite ()*	Altaite ()*	Annabergite ()*	Aragonite ()*	Arsenopyrite ()*
Azurite ()*	Baryte ()*	Bismuth ()*	Bismuthinite ()*	Bornite ()*
Boulangerite ()*	Bournonite ()*	Brochantite ()*	Calcite ()*	Chalcoalumite ()*
Chalcocite ()*	Chalcophyllite ()*	Chalcopyrite ()*	Chrysocolla ()*	Cobaltite ()*
Copper ()*	Covellite ()*	Cuprite ()*	Devilline ()*	Dolomite ()*
Erythrite ()*	Galena ()*	Gold ()*	Gypsum ()*	Hedleyite ()*
Hematite ()*	Hessite ()*	Langite ()*	Malachite ()*	Manganite ()*
Matildite ()*	Molybdenite ()*	Monohydrocalcite ()*	Pentlandite ()*	Pilsenite ()*
Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Rhodochrosite ()*	Rhodonite ()*
Scorodite ()*	Siderite ()*	Sphalerite ()*	Tellurobismuthite ()*	Tetradymite ()*
Tetrahedrite-(Zn) ()*	Tyrolite ()*	Wroewolfeite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aleksite ()*	Tetradymite	PbBi₂Te₂S₂	1	123315	28
Altaite ()*	Rocksalt	PbTe	1	123315	489
Annabergite ()*	Vivianite	Ni₃(AsO₄)₂·8H₂O	1	123314	445
Aragonite ()*	Aragonite	Ca(CO₃)	1	123320	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS	3	123315,123319,123320	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	1	123319	5509
Baryte ()*	Baryte	Ba(SO₄)	1	123315	11547
Bismuth ()*	Arsenic	Bi	1	123315	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	1	123315	1935
Bornite ()*	None	Cu₅FeS₄	1	123314	5516
Boulangerite ()*	None	Pb₅Sb₄S₁₁	1	123315	843
Bournonite ()*	Bournonite	CuPbSbS₃	1	123315	1089
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	1	123320	1633
Calcite ()*	Calcite	Ca(CO₃)	2	123315,123319	27770
Chalcoalumite ()*	Chalcoalumite	CuAl₄(SO₄)(OH)₁₂·3H₂O	1	123320	91
Chalcocite ()*	None	Cu₂S	1	123320	5707
Chalcophyllite ()*	Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄·36H₂O	1	123320	194
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	5	123314,123315,123316,123317,123319	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	1	123320	3531
Cobaltite ()*	Cobaltite	CoAsS	3	123315,123319,123320	966
Copper ()*	Copper	Cu	2	123315,123320	3846
Covellite ()*	Covellite	CuS	2	123315,123320	4165
Cuprite ()*	Not in a structural group	Cu₂O	1	123320	2970
Devilline ()*	Devilline	CaCu₄(SO₄)₂(OH)₆·3H₂O	1	123320	366
Dolomite ()*	None	CaMg(CO₃)₂	1	123315	9895
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O	4	123314,123315,123319,123320	814
Galena ()*	Rocksalt	PbS	3	123315,123316,123317	24243
Gold ()*	Copper	Au	4	123315,123316,123317,123319	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	123320	6890
Hedleyite ()*	Tetradymite	Bi₇Te₃	1	123315	104
Hematite ()*	Corundum	Fe₂O₃	1	123318	14640
Hessite ()*	None	Ag₂Te	1	123315	804
Langite ()*	None	Cu₄(SO₄)(OH)₆·2H₂O	2	123319,123320	593
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	2	123314,123320	12537
Manganite ()*	Rutile	Mn³⁺O(OH)	1	123318	770
Matildite ()*	None	AgBiS₂	1	123315	252
Molybdenite ()*	Molybdenite	MoS₂	1	123315	5800
Monohydrocalcite ()*	None	Ca(CO₃)·H₂O	1	123320	55
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	1	123315	1512
Pilsenite ()*	Tetradymite	Bi₄Te₃	1	123315	57
Pyrite ()*	Pyrite	FeS₂	6	123314,123315,123316,123317,123319,123320	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	4	123315,123317,123319,123320	9056
Quartz ()*	Quartz	SiO₂	4	123314,123315,123319,123320	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	1	123318	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	2	123318,123319	969
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	1	123315	1153
Siderite ()*	Calcite	Fe(CO₃)	1	123315	6417
Sphalerite ()*	Sphalerite	ZnS	4	123315,123316,123319,123320	21482
Tellurobismuthite ()*	Tetradymite	Bi₂Te₃	1	123315	276
Tetradymite ()*	Tetradymite	Bi₂Te₂S	1	123315	510
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	1	123315	5317
Tyrolite ()*	Tyrolite	Ca₂Cu₉(AsO₄)₄(CO₃)(OH)₈·11H₂O	1	123320	245
Wroewolfeite ()*	None	Cu₄(SO₄)(OH)₆·2H₂O	1	123320	95

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...