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:
Guyana

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

mindat Locality ID: 17370
mindat URL: http://www.mindat.org/loc-17370.html

Tectonic Settings:

Total number of sublocalities beneath "Guyana": 63
Total number of bottom-level sublocalities: 43

Number of Child Localities: 12
Child Localities:
Barima-Waini Region
Cuyuni-Mazaruni Region
Demerara-Mahaica Region
East Berbice-Corentyne Region
Essequibo Islands-West Demerara Region
Mahaica-Berbice Region
Mazaruni District
Pomeroon-Supenaam Region
Potaro-Siparuni Region
Upper Demerara-Berbice Region
Upper Takutu-Upper Essequibo Region
Watt Mine

Latitude: 6°9'7"N
Longitude: 59°7'24"W
Decimal Degree (lat, lon): 6.1519444444444,-59.123333333333

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.

Alunite	Amphibole	Arsenic	Beryl	Brannerite	Calcite	Chalcopyrite	Clay	Clinozoisite	Columbite
Copper	Corrensite	Corundum	Diamond	Diaspore	Epidote	Feldspar	Fluorite	Kaolinite	Lepidocrocite
Melonite	Mica	Molybdenite	Nickeline	None	Not in a structural group	Potarite	Pyrite	Pyrophyllite	Pyroxene
Quartz	Rocksalt	Rutile	Scheelite	Sphalerite	Spinel	Tetradymite	Titanite	Topaz	Tourmaline
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 Au B Ba Bi C Ca Ce Cr Cu F Fe H Hg K Li Mg Mo Na Nb Ni O P Pb Pd S Si Ta Te Th Ti U W Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amphibole Arsenic Beryl Brannerite Calcite Chalcopyrite Clay Clinozoisite Columbite
Copper Corrensite Corundum Diamond Diaspore Epidote Feldspar Fluorite Kaolinite Lepidocrocite
Melonite Mica Molybdenite Nickeline None Not in a structural group Potarite Pyrite Pyrophyllite Pyroxene
Quartz Rocksalt Rutile Scheelite Sphalerite Spinel Tetradymite Titanite Topaz Tourmaline
Zircon

66 IMA Minerals at location:

Actinolite ()*	Aegirine ()*	Aegirine-augite ()*	Albite ()*	Altaite ()*
Anatase ()*	Ankerite ()*	Arfvedsonite ()*	Bismuth ()*	Böhmite ()*
Bracewellite ()*	Brannerite ()*	Calaverite ()*	Calcite ()*	Chalcopyrite ()*
Coffinite ()*	Coloradoite ()*	Copper ()*	Cordierite ()*	Corrensite ()*
Cummingtonite ()*	Diamond ()*	Dravite ()*	Ephesite ()*	Epidote ()*
Eskolaite ()*	Euxenite-(Y) ()*	Gahnite ()*	Galena ()*	Gibbsite ()*
Goethite ()*	Gold ()*	Gorceixite ()*	Grimaldiite ()*	Guyanaite ()*
Hematite ()*	Hessite ()*	Kaolinite ()*	Magnetite ()*	Mcconnellite ()*
Melonite ()*	Microcline ()*	Molybdenite ()*	Muscovite ()*	Nacrite ()*
Petzite ()*	Potarite ()*	Pyrite ()*	Pyrophyllite ()*	Pyrrhotite ()*
Quartz ()*	Rutile ()*	Samarskite-(Y) ()*	Scheelite ()*	Siderite ()*
Silver ()*	Sphalerite ()*	Sylvanite ()*	Tellurobismuthite ()*	Tetradymite ()*
Thorite ()*	Titanite ()*	Topaz ()*	Uraninite ()*	Volynskite ()*
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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	64718	3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆			1	64705	1022
Aegirine-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆			1	64705	286
Albite ()*	Feldspar	Na(AlSi₃O₈)	2095	1997	4	64705,64729,64758,64760	8803
Altaite ()*	Rocksalt	PbTe	2095	1997	2	64758,64760	489
Anatase ()*	Not in a structural group	TiO₂			1	64752	2162
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	2095	1997	2	64758,64760	3092
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂			1	64705	295
Bismuth ()*	Arsenic	Bi	2095	1997	1	64758	1966
Böhmite ()*	Lepidocrocite	AlO(OH)			1	64752	195
Bracewellite ()*	Diaspore	CrO(OH)			1	64721	2
Brannerite ()*	Brannerite	UTi₂O₆			1	64729	248
Calaverite ()*	Melonite	AuTe₂	2095	1997	2	64758,64760	361
Calcite ()*	Calcite	Ca(CO₃)	2095	1997	3	64729,64758,64760	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2095	1997	2	64758,64760	27198
Coffinite ()*	Zircon	U(SiO₄)·nH₂O			1	64729	566
Coloradoite ()*	Sphalerite	HgTe	2095	1997	2	64758,64760	169
Copper ()*	Copper	Cu	2095	1997	2	64758,64760	3846
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈			1	64756	1008
Corrensite ()*	Corrensite Clay	(Ca,Na,K)_1-x(Mg,Fe,Al)₉(Si,Al)₈O₂₀(OH)₁₀·nH₂O	2095	1997	1	64758	49
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	64718	327
Diamond ()*	Diamond	C			3	64708,64719,64739	697
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	2095	1997	1	64758	648
Ephesite ()*	Mica	NaLiAl₂(Si₂Al₂)O₁₀(OH)₂	2095	1997	1	64758	21
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2095	1997	2	64758,64760	8173
Eskolaite ()*	Corundum	Cr₂O₃			1	64721	30
Euxenite-(Y) ()*	Columbite	Y(NbTi)O₆			1	64705	414
Gahnite ()*	Spinel	ZnAl₂O₄			1	64721	445
Galena ()*	Rocksalt	PbS	2095	1997	2	64758,64760	24243
Gibbsite ()*	None	Al(OH)₃			1	64752	504
Goethite ()*	Diaspore	FeO(OH)	2095	1997	2	64752,64758	7437
Gold ()*	Copper	Au	2095	1997	5	64704,64721,64758,64760,64763	30554
Gorceixite ()*	Alunite	BaAl₃(PO₄)(PO₃OH)(OH)₆			1	64719	121
Grimaldiite ()*	None	CrO(OH)			1	64721	5
Guyanaite ()*	None	CrO(OH)	2095	1997	2	64721,64758	6
Hematite ()*	Corundum	Fe₂O₃	2095	1997	3	64752,64758,64760	14640
Hessite ()*	None	Ag₂Te	2095	1997	2	64758,64760	804
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2095	1997	2	64752,64758	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2095	1997	3	64705,64758,64760	14899
Mcconnellite ()*	None	Cu¹⁺CrO₂			1	64721	2
Melonite ()*	Melonite	NiTe₂	2095	1997	2	64758,64760	207
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	64705	4924
Molybdenite ()*	Molybdenite	MoS₂	2095	1997	3	64758,64760,64765	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2095	1997	2	64758,64760	17380
Nacrite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2095	1997	1	64758	112
Petzite ()*	None	Ag₃AuTe₂	2095	1997	2	64758,64760	409
Potarite ()*	Potarite	PdHg			1	64739	25
Pyrite ()*	Pyrite	FeS₂	2095	1997	3	64752,64758,64760	39462
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂			1	64721	771
Pyrrhotite ()*	Nickeline	Fe₇S₈	2095	1997	2	64758,64760	9056
Quartz ()*	Quartz	SiO₂	2095	1997	6	64705,64721,64752,64758,64760,64763	61156
Rutile ()*	Rutile	TiO₂	2095	1997	2	64758,64760	5614
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈			1	64705	353
Scheelite ()*	Scheelite	Ca(WO₄)	2095	1997	2	64758,64760	4894
Siderite ()*	Calcite	Fe(CO₃)			1	64752	6417
Silver ()*	Copper	Ag			1	64721	5186
Sphalerite ()*	Sphalerite	ZnS	2095	1997	2	64758,64760	21482
Sylvanite ()*	Melonite	AgAuTe₄			1	64704	337
Tellurobismuthite ()*	Tetradymite	Bi₂Te₃	2095	1997	2	64758,64760	276
Tetradymite ()*	Tetradymite	Bi₂Te₂S	2095	1997	1	64758	510
Thorite ()*	Zircon	Th(SiO₄)			1	64705	1006
Titanite ()*	Titanite	CaTi(SiO₄)O	2095	1997	2	64705,64758	4899
Topaz ()*	Topaz	Al₂SiO₄F₂			1	64721	1476
Uraninite ()*	Fluorite	UO₂			1	64729	2718
Volynskite ()*	None	AgBiTe₂	2095	1997	2	64758,64760	64
Zircon ()*	Zircon	Zr(SiO₄)			1	64729	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
	Alexandra-0302	2007	1997	2002±5	U-Pb	Age og hydrothermal mineralization		feldspar, titanite, apatite, rutile	OM95-2, OM95-26, OM95-28					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					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
R070444	Merume River, Kamakusa, Mazaruni District, Guyana	https://rruff.info/R070444

All locality data graciously provided by mindat.org

All age data...