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:
Virù Province, La Libertad, Peru

Oldest recorded age at locality: 0
Youngest recorded age at locality: 0

mindat Locality ID: 203611
mindat URL: http://www.mindat.org/loc-203611.html

Tectonic Settings:

Total number of sublocalities beneath "Virù Province, La Libertad, Peru": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Chorobal Mine
Guañape Islands

Latitude: 8°33'"S
Longitude: 78°58'"W
Decimal Degree (lat, lon): -8.55,-78.966666666667

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.

Aphthitalite	Arcanite	Biphosphammite	Clay	Diaspore	Gypsum	Kaolinite	Malachite	Mica	None
Oxalate	Quartz

Aphthitalite ()*	Biphosphammite ()*	Goethite ()*	Gypsum ()*	Kaolinite ()*
Malachite ()*	Mascagnite ()*	Muscovite ()*	Oxammite ()*	Phosphammite ()*
Quartz ()*	Salammoniac ()*	Stercorite ()*	Teschemacherite ()*

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 C Ca Cl Cu Fe H K N Na O P S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aphthitalite Arcanite Biphosphammite Clay Diaspore Gypsum Kaolinite Malachite Mica None
Oxalate Quartz

14 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
Aphthitalite ()*	Aphthitalite	K₃Na(SO₄)₂	0	0	1	96302	77
Biphosphammite ()*	Biphosphammite	(NH₄)H₂(PO₄)	0	0	1	96302	11
Goethite ()*	Diaspore	FeO(OH)			1	96301	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	96301	6890
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	96301	5591
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	96301	12537
Mascagnite ()*	Arcanite	(NH₄)₂(SO₄)	0	0	1	96302	61
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	96301	17380
Oxammite ()*	Oxalate	(NH₄)₂(C₂O₄)·H₂O	0	0	1	96302	3
Phosphammite ()*	None	(NH₄)₂(PO₃OH)	0	0	1	96302	3
Quartz ()*	Quartz	SiO₂			1	96301	61156
Salammoniac ()*	None	(NH₄)Cl	0	0	1	96302	105
Stercorite ()*	None	(NH₄)Na(PO₃OH)·4H₂O	0	0	1	96302	6
Teschemacherite ()*	None	(NH₄)H(CO₃)	0	0	1	96302	6

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_0030	Guano deposit

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
	Michelle_0030	0	0	0		Age of mineralization									2550	Guañape Islands, Virù Province, La Libertad, Peru	Guañape Islands	Winchell and Benoit (1951)		AM36_590	Oxammite occurs in guano deposits. First discovered in 1870 by Shepard, he suggested it be called Guanapite.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...