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:
Oficina Maria Elena, Tocopilla Province, Antofagasta, Chile

Oldest recorded age at locality: 65.7
Youngest recorded age at locality: 65.7

mindat Locality ID: 51073
mindat URL: http://www.mindat.org/loc-51073.html

Tectonic Settings:

Total number of sublocalities beneath "Oficina Maria Elena, Tocopilla Province, Antofagasta, Chile": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Antucoya Mine
Francisco De Vergara
Maria Elena Mine

Latitude: 22°31'59"S
Longitude: 69°55'"W
Decimal Degree (lat, lon): -22.533055555556,-69.916666666667

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.

Allophane	Alunite	Atacamite	Brochantite	Calcite	Chalcopyrite	Clay	Clinozoisite	Corundum	Epidote
Feldspar	Kaolinite	Mica	Molybdenite	None	Not in a structural group	Pyrite	Quartz

Albite ()*	Anhydrite ()*	Atacamite ()*	Brochantite ()*	Calcite ()*
Chalcopyrite ()*	Chrysocolla ()*	Darapskite ()*	Dickite ()*	Dietzeite ()*
Epidote ()*	Hematite ()*	Jarosite ()*	Kaolinite ()*	Lópezite ()*
Meta-alunogen ()*	Molybdenite ()*	Muscovite ()*	Niter ()*	Nitratine ()*
Pyrite ()*	Quartz ()*	Tarapacáite ()*	Ulexite ()*

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 B C Ca Cl Cr Cu Fe H I K Mo N Na O S Si

Elements from minerals reported directly at this locality: H K N Na O S

Structural Groups for minerals in this locality:
Allophane Alunite Atacamite Brochantite Calcite Chalcopyrite Clay Clinozoisite Corundum Epidote
Feldspar Kaolinite Mica Molybdenite None Not in a structural group Pyrite Quartz

24 IMA Minerals at location:

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
Albite ()*	Feldspar	Na(AlSi₃O₈)	65.7	65.7	1	35914	8803
Anhydrite ()*	Not in a structural group	Ca(SO₄)	65.7	65.7	1	35914	1588
Atacamite ()*	Atacamite	Cu₂Cl(OH)₃	65.7	65.7	1	35914	544
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	65.7	65.7	1	35914	1633
Calcite ()*	Calcite	Ca(CO₃)	65.7	65.7	1	35914	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	65.7	65.7	1	35914	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	65.7	65.7	1	35914	3531
Darapskite ()*	None	Na₃(SO₄)(NO₃)·H₂O	65.7	65.7	0		31
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	65.7	65.7	1	35914	651
Dietzeite ()*	None	Ca₂(IO₃)₂(CrO₄)·H₂O			1	35916	4
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	65.7	65.7	1	35914	8173
Hematite ()*	Corundum	Fe₂O₃	65.7	65.7	1	35914	14640
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	65.7	65.7	1	35914	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	65.7	65.7	1	35914	5591
Lópezite ()*	None	K₂Cr₂O₇			1	35916	5
Meta-alunogen ()*	None	Al₂(SO₄)₃·14H₂O			1	35915	8
Molybdenite ()*	Molybdenite	MoS₂	65.7	65.7	1	35914	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	65.7	65.7	1	35914	17380
Niter ()*	None	K(NO₃)	65.7	65.7	0		181
Nitratine ()*	Calcite	Na(NO₃)	65.7	65.7	0		91
Pyrite ()*	Pyrite	FeS₂	65.7	65.7	1	35914	39462
Quartz ()*	Quartz	SiO₂	65.7	65.7	1	35914	61156
Tarapacáite ()*	None	K₂(CrO₄)			1	35916	4
Ulexite ()*	None	NaCaB₅O₆(OH)₆·5H₂O			1	35916	160

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-00155	65.7	65.7	65.7									Albite, Anhydrite, Atacamite, Brochantite, Chalcopyrite, Chrysocolla, Epidote, Hematite, Jarosite, Molybdenite, Pyrite	Cu	133117	Antucoya Mine, Oficina Maria Elena, Tocopilla Province, Antofagasta, Chile	Antucoya	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL
R130292	Maria Elena Mine, Oficina Maria Elena, Tocopilla Province, Antofagasta, Chile	https://rruff.info/R130292

All locality data graciously provided by mindat.org

All age data...