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:
Ashanti Gold Belt, Western Region, Ghana

Oldest recorded age at locality: 2157
Youngest recorded age at locality: 2091

mindat Locality ID: 192427
mindat URL: http://www.mindat.org/loc-192427.html

Tectonic Settings:

Total number of sublocalities beneath "Ashanti Gold Belt, Western Region, Ghana": 34
Total number of bottom-level sublocalities: 26

Number of Child Localities: 9
Child Localities:
Akyempim
Bogoso-Prestea Area
Dunkwa
Konongo
Obenemase
Obuasi
Pampe Deposit
Romaso
Tarkwa

Latitude: 6°1'43"N
Longitude: 1°42'36"W
Decimal Degree (lat, lon): 6.0286111111111,-1.71

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.

Arsenic	Arsenolite	Arsenopyrite	Bournonite	Calcite	Chalcopyrite	Chloritoid	Clay	Clinozoisite	Copper
Corundum	Diamond	Diaspore	Epidote	Feldspar	Kaňkite	Löllingite	Marcasite	Melonite	Mica
Nickeline	None	Not in a structural group	Pentlandite	Pyrite	Quartz	Rocksalt	Rutile	Sphalerite	Spinel
Staurolite	Stibnite	Tetrahedrite	Ullmannite	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: Ag Al As Au C Ca Cr Cu Fe H Hg K Mg Mn Na Ni O Pb S Sb Si Te Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Arsenic Arsenolite Arsenopyrite Bournonite Calcite Chalcopyrite Chloritoid Clay Clinozoisite Copper
Corundum Diamond Diaspore Epidote Feldspar Kaňkite Löllingite Marcasite Melonite Mica
Nickeline None Not in a structural group Pentlandite Pyrite Quartz Rocksalt Rutile Sphalerite Spinel
Staurolite Stibnite Tetrahedrite Ullmannite Zircon

62 IMA Minerals at location:

Alabandite ()*	Albite ()*	Altaite ()*	Ankerite ()*	Antimony ()*
Arsenolite ()*	Arsenopyrite ()*	Aurostibite ()*	Bornite ()*	Boulangerite ()*
Bournonite ()*	Bukovskýite ()*	Calaverite ()*	Calcite ()*	Chalcocite ()*
Chalcopyrite ()*	Chloritoid ()*	Chromite ()*	Coloradoite ()*	Cuprite ()*
Diamond ()*	Dolomite ()*	Epidote ()*	Freibergite ()*	Galena ()*
Goethite ()*	Gold ()*	Graphite ()*	Hematite ()*	Henryite ()*
Hessite ()*	Ilmenite ()*	Jamesonite ()*	Kaňkite ()*	Kostovite ()*
Löllingite ()*	Magnetite ()*	Marcasite ()*	Muscovite ()*	Gersdorffite-Pa3 ()*
Paragonite ()*	Pentlandite ()*	Petzite ()*	Pitticite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Rickardite ()*	Rutile ()*	Scorodite ()*
Siderite ()*	Smythite ()*	Sphalerite ()*	Staurolite ()*	Stibnite ()*
Stützite ()*	Sylvanite ()*	Tetrahedrite-(Zn) ()*	Ullmannite ()*	Weissite ()*
Zincochromite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Alabandite ()*	Rocksalt	MnS	2157	2091	1	63876	312
Albite ()*	Feldspar	Na(AlSi₃O₈)	2157	2091	2	63862,63866	8803
Altaite ()*	Rocksalt	PbTe	2157	2091	1	63876	489
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	2157	2091	3	63859,63862,63876	3092
Antimony ()*	Arsenic	Sb	2157	2091	1	63864	363
Arsenolite ()*	Arsenolite	As₂O₃	2157	2091	2	63876,63880	231
Arsenopyrite ()*	Arsenopyrite	FeAsS	2157	2091	12	63861,63862,63863,63864,63866,63868,63869,63871,63873,63876,63880,63884	9052
Aurostibite ()*	Pyrite	AuSb₂	2157	2153	1	63876	73
Bornite ()*	None	Cu₅FeS₄	2157	2091	5	63861,63862,63876,63880,63890	5516
Boulangerite ()*	None	Pb₅Sb₄S₁₁	2157	2091	4	63862,63866,63873,63876	843
Bournonite ()*	Bournonite	CuPbSbS₃	2157	2091	4	63862,63866,63873,63876	1089
Bukovskýite ()*	None	Fe³⁺₂(AsO₄)(SO₄)(OH)·7H₂O	2157	2091	1	63876	13
Calaverite ()*	Melonite	AuTe₂	2157	2153	1	63876	361
Calcite ()*	Calcite	Ca(CO₃)	2157	2091	2	63876,63888	27770
Chalcocite ()*	None	Cu₂S	2157	2091	1	63876	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2157	2091	11	63859,63861,63862,63863,63865,63866,63873,63876,63880,63888,63890	27198
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂	2157	2091	1	63890	376
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2157	2091	2	63886,63890	3902
Coloradoite ()*	Sphalerite	HgTe	2157	2091	1	63876	169
Cuprite ()*	Not in a structural group	Cu₂O	2157	2091	1	63880	2970
Diamond ()*	Diamond	C	2157	2091	1	63890	697
Dolomite ()*	None	CaMg(CO₃)₂	2157	2091	1	63859	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2157	2091	1	63890	8173
Freibergite ()*	Tetrahedrite	Ag₆[Cu₄Fe₂]Sb₄S₁₂	2157	2091	2	63866,63876	663
Galena ()*	Rocksalt	PbS	2157	2091	5	63862,63865,63866,63873,63876	24243
Goethite ()*	Diaspore	FeO(OH)	2157	2091	2	63876,63880	7437
Gold ()*	Copper	Au	2157	2153	22	63857,63858,63859,63861,63862,63863,63864,63865,63866,63868,63869,63870,63871,63873,63876,63880,63884,63885,63886,63887,63888,63890	30554
Graphite ()*	None	C	2157	2091	6	63859,63862,63864,63866,63873,63876	2812
Hematite ()*	Corundum	Fe₂O₃	2157	2091	5	63876,63880,63886,63889,63890	14640
Henryite ()*	None	(Cu,Ag)_3+xTe₂ (x~0.4)	2157	2091	1	63876	4
Hessite ()*	None	Ag₂Te	2157	2091	1	63876	804
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2157	2091	2	63886,63890	5433
Jamesonite ()*	None	Pb₄FeSb₆S₁₄	2157	2091	1	63866	784
Kaňkite ()*	Kaňkite	Fe³⁺(AsO₄)·3.5H₂O	2157	2091	1	63876	38
Kostovite ()*	None	AuCuTe₄	2157	2153	1	63876	21
Löllingite ()*	Löllingite	FeAs₂	2157	2091	1	63876	762
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2157	2091	3	63886,63888,63890	14899
Marcasite ()*	Marcasite	FeS₂	2157	2091	5	63862,63866,63873,63876,63890	5674
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2157	2091	5	63859,63862,63866,63876,63890	17380
Gersdorffite-Pa3 ()*	Pyrite	NiAsS	2157	2091	2	63866,63876	767
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂	2157	2091	1	63862	247
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2157	2091	1	63866	1512
Petzite ()*	None	Ag₃AuTe₂	2157	2153	1	63876	409
Pitticite ()*	None	[Fe,AsO₄,SO₄,H₂O] (?)	2157	2091	1	63876	140
Pyrite ()*	Pyrite	FeS₂	2157	2091	16	63859,63861,63862,63863,63866,63868,63869,63871,63873,63874,63876,63880,63884,63887,63888,63890	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2157	2091	8	63862,63863,63866,63873,63876,63880,63888,63890	9056
Quartz ()*	Quartz	SiO₂	2157	2091	13	63859,63862,63863,63866,63868,63869,63873,63876,63880,63884,63887,63888,63890	61156
Rickardite ()*	None	Cu_3-xTe₂	2157	2091	1	63876	52
Rutile ()*	Rutile	TiO₂	2105	2091	4	63866,63876,63886,63890	5614
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	2157	2091	2	63876,63880	1153
Siderite ()*	Calcite	Fe(CO₃)	2157	2091	1	63862	6417
Smythite ()*	None	(Fe,Ni)_3+xS₄ (x ≈ 0-0.3)	2157	2091	1	63873	77
Sphalerite ()*	Sphalerite	ZnS	2157	2091	6	63862,63865,63866,63873,63876,63880	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	2157	2091	1	63890	978
Stibnite ()*	Stibnite	Sb₂S₃	2157	2091	2	63862,63876	3418
Stützite ()*	None	Ag_5-xTe₃ (x = 0.24-0.36)	2157	2091	1	63876	92
Sylvanite ()*	Melonite	AgAuTe₄	2157	2153	1	63876	337
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	2157	2091	5	63862,63865,63866,63873,63876	5317
Ullmannite ()*	Ullmannite	NiSbS	2157	2091	1	63866	293
Weissite ()*	None	Cu_2-xTe	2157	2091	1	63876	31
Zincochromite ()*	Spinel	ZnCr₂O₄	2157	2091	1	63890	11
Zircon ()*	Zircon	Zr(SiO₄)	2157	2153	1	63890	5251

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	PR89_129-1	2157	2153	2155±2	207Pb/206Pb		high	zircon	20			Zircon	Gold	Au	192427	Ashanti Gold Belt, Western Region, Ghana	Ashanti belt, Ghana	Oberthür et al. (1998)	10.1016/S0301-9268(97)00075-2	PR89_129	Fig. 4
	PR89_129-2	2105	2091	2098±7	Pb/Pb			rutile	GH789			Rutile	Gold	Au	192427	Ashanti Gold Belt, Western Region, Ghana	Ashanti belt, Ghana	Oberthür et al. (1998)	10.1016/S0301-9268(97)00075-3	PR89_130	Fig. 8

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...