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:
Opemiska Mines (Opemiska Copper Complex), Chibougamau Mining District, Nord-du-Québec, Québec, Canada

Oldest recorded age at locality: 2716
Youngest recorded age at locality: 2714

mindat Locality ID: 194379
mindat URL: http://www.mindat.org/loc-194379.html

Tectonic Settings:

Total number of sublocalities beneath "Opemiska Mines (Opemiska Copper Complex), Chibougamau Mining District, Nord-du-Québec, Québec, Canada": 0
Total number of bottom-level sublocalities: 0

Latitude: 49°47'17"N
Longitude: 74°51'39"W
Decimal Degree (lat, lon): 49.788055555556,-74.860833333333

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.

Arsenopyrite	Calcite	Clay	Copper	Corundum	Digenite	Millerite	Molybdenite	Nickeline	None
Pentlandite	Pyrite	Quartz	Rocksalt	Rutile	Scheelite	Sphalerite	Spinel	Stilpnomelane

Arsenopyrite ()*	Bornite ()*	Calcite ()*	Chalcocite ()*	Digenite ()*
Galena ()*	Gold ()*	Heazlewoodite ()*	Ilmenite ()*	Linnaeite ()*
Magnetite ()*	Millerite ()*	Molybdenite ()*	Gersdorffite-Pa3 ()*	Pentlandite ()*
Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Rutile ()*	Scheelite ()*
Sphalerite ()*	Stilpnomelane ()*

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 C Ca Co Cu Fe H K Mg Mo Na Ni O Pb S Si Ti W Zn

Elements from minerals reported directly at this locality: Al As Au C Ca Co Cu Fe H K Mg Mo Na Ni O Pb S Si Ti W Zn

Structural Groups for minerals in this locality:
Arsenopyrite Calcite Clay Copper Corundum Digenite Millerite Molybdenite Nickeline None
Pentlandite Pyrite Quartz Rocksalt Rutile Scheelite Sphalerite Spinel Stilpnomelane

22 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	2716	2714	9052
Bornite ()*	None	Cu₅FeS₄	2716	2714	5516
Calcite ()*	Calcite	Ca(CO₃)	2716	2714	27770
Chalcocite ()*	None	Cu₂S	2716	2714	5707
Digenite ()*	Digenite	Cu_1.8S	2716	2714	1027
Galena ()*	Rocksalt	PbS	2716	2714	24243
Gold ()*	Copper	Au	2716	2714	30554
Heazlewoodite ()*	None	Ni₃S₂	2716	2714	205
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2716	2714	5433
Linnaeite ()*	Spinel	Co²⁺Co³⁺₂S₄	2716	2714	249
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2716	2714	14899
Millerite ()*	Millerite	NiS	2716	2714	1066
Molybdenite ()*	Molybdenite	MoS₂	2716	2714	5800
Gersdorffite-Pa3 ()*	Pyrite	NiAsS	2716	2714	767
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2716	2714	1512
Pyrite ()*	Pyrite	FeS₂	2716	2714	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2716	2714	9056
Quartz ()*	Quartz	SiO₂	2716	2714	61156
Rutile ()*	Rutile	TiO₂	2716	2714	5614
Scheelite ()*	Scheelite	Ca(WO₄)	2716	2714	4894
Sphalerite ()*	Sphalerite	ZnS	2716	2714	21482
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	2716	2714	456

1 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
	PorphCu-00001	2716	2714	2716–2714							Yes		Chalcopyrite, Magnetite, Pyrite, Pyrrhotite, Siderite	Cu	586	Chibougamau Mining District, Nord-du-Québec, Québec, Canada	Chibougamau	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...