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:
Fennell Pit, Omai Gold Mine, Omai, Upper Takutu-Upper Essequibo Region, Guyana

Oldest recorded age at locality: 2095
Youngest recorded age at locality: 1997

mindat Locality ID: 204524
mindat URL: http://www.mindat.org/loc-204524.html

Tectonic Settings:

Total number of sublocalities beneath "Fennell Pit, Omai Gold Mine, Omai, Upper Takutu-Upper Essequibo Region, Guyana": 0
Total number of bottom-level sublocalities: 0

Latitude: 5°26'39"N
Longitude: 58°45'49"W
Decimal Degree (lat, lon): 5.4441666666667,-58.763611111111

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.

Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum	Epidote	Feldspar	Melonite	Mica
Molybdenite	Nickeline	None	Pyrite	Quartz	Rocksalt	Rutile	Scheelite	Sphalerite	Spinel
Tetradymite

Albite ()*	Altaite ()*	Ankerite ()*	Calaverite ()*	Calcite ()*
Chalcopyrite ()*	Coloradoite ()*	Copper ()*	Epidote ()*	Galena ()*
Gold ()*	Hematite ()*	Hessite ()*	Magnetite ()*	Melonite ()*
Molybdenite ()*	Muscovite ()*	Petzite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Rutile ()*	Scheelite ()*	Sphalerite ()*	Tellurobismuthite ()*
Volynskite ()*

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 Au Bi C Ca Cu Fe H Hg K Mo Na Ni O Pb S Si Te Ti W Zn

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

Structural Groups for minerals in this locality:
Calcite Chalcopyrite Clay Clinozoisite Copper Corundum Epidote Feldspar Melonite Mica
Molybdenite Nickeline None Pyrite Quartz Rocksalt Rutile Scheelite Sphalerite Spinel
Tetradymite

26 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	2095	1997	8803
Altaite ()*	Rocksalt	PbTe	2095	1997	489
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	2095	1997	3092
Calaverite ()*	Melonite	AuTe₂	2095	1997	361
Calcite ()*	Calcite	Ca(CO₃)	2095	1997	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2095	1997	27198
Coloradoite ()*	Sphalerite	HgTe	2095	1997	169
Copper ()*	Copper	Cu	2095	1997	3846
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2095	1997	8173
Galena ()*	Rocksalt	PbS	2095	1997	24243
Gold ()*	Copper	Au	2095	1997	30554
Hematite ()*	Corundum	Fe₂O₃	2095	1997	14640
Hessite ()*	None	Ag₂Te	2095	1997	804
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2095	1997	14899
Melonite ()*	Melonite	NiTe₂	2095	1997	207
Molybdenite ()*	Molybdenite	MoS₂	2095	1997	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2095	1997	17380
Petzite ()*	None	Ag₃AuTe₂	2095	1997	409
Pyrite ()*	Pyrite	FeS₂	2095	1997	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2095	1997	9056
Quartz ()*	Quartz	SiO₂	2095	1997	61156
Rutile ()*	Rutile	TiO₂	2095	1997	5614
Scheelite ()*	Scheelite	Ca(WO₄)	2095	1997	4894
Sphalerite ()*	Sphalerite	ZnS	2095	1997	21482
Tellurobismuthite ()*	Tetradymite	Bi₂Te₃	2095	1997	276
Volynskite ()*	None	AgBiTe₂	2095	1997	64

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
	Alexandra-0302	2007	1997	2002±5	U-Pb	Age og hydrothermal mineralization		feldspar, titanite, apatite, rutile	OM95-2, OM95-26, OM95-28		Yes			Au	16661	Omai Gold Mine, Omai, Upper Takutu-Upper Essequibo Region, Guyana	Omai	Norcross et al. (2000)	10.1016/S0301-9268(99)00102-3	PR102_69
	Alexandra-0303	2095	2093	2094±1	U-Pb	Age og hydrothermal mineralization		titanite, apatite	OM95-2, OM95-4		Yes			Au	16661	Omai Gold Mine, Omai, Upper Takutu-Upper Essequibo Region, Guyana	Omai	Norcross et al. (2000)	10.1016/S0301-9268(99)00102-3	PR102_69

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...