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:
Justice Mine, Obuasi, Ashanti Gold Belt, Western Region, Ghana

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

mindat Locality ID: 301616
mindat URL: http://www.mindat.org/loc-301616.html

Tectonic Settings:

Total number of sublocalities beneath "Justice Mine, Obuasi, Ashanti Gold Belt, Western Region, Ghana": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Arsenolite	Arsenopyrite	Chalcopyrite	Copper	Corundum	Diaspore	Nickeline	None	Not in a structural group	Pyrite
Quartz	Sphalerite

Arsenolite ()*	Arsenopyrite ()*	Bornite ()*	Chalcopyrite ()*	Cuprite ()*
Goethite ()*	Gold ()*	Hematite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Scorodite ()*	Sphalerite ()*

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: As Au Cu Fe H O S Si Zn

Elements from minerals reported directly at this locality: As Au Cu Fe H O S Si Zn

Structural Groups for minerals in this locality:
Arsenolite Arsenopyrite Chalcopyrite Copper Corundum Diaspore Nickeline None Not in a structural group Pyrite
Quartz Sphalerite

13 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Arsenolite ()*	Arsenolite	As₂O₃	2157	2091	231
Arsenopyrite ()*	Arsenopyrite	FeAsS	2157	2091	9052
Bornite ()*	None	Cu₅FeS₄	2157	2091	5516
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2157	2091	27198
Cuprite ()*	Not in a structural group	Cu₂O	2157	2091	2970
Goethite ()*	Diaspore	FeO(OH)	2157	2091	7437
Gold ()*	Copper	Au	2157	2153	30554
Hematite ()*	Corundum	Fe₂O₃	2157	2091	14640
Pyrite ()*	Pyrite	FeS₂	2157	2091	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2157	2091	9056
Quartz ()*	Quartz	SiO₂	2157	2091	61156
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	2157	2091	1153
Sphalerite ()*	Sphalerite	ZnS	2157	2091	21482

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		Yes	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		Yes	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...