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:
Blue Jay-Good Friday Mines (Blue Jay Good Friday Mines), Sycamore Canyon, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA

Oldest recorded age at locality: 62
Youngest recorded age at locality: 56

mindat Locality ID: 190381
mindat URL: http://www.mindat.org/loc-190381.html

Tectonic Settings:

Total number of sublocalities beneath "Blue Jay-Good Friday Mines (Blue Jay Good Friday Mines), Sycamore Canyon, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Blue Jay Mine (Rapids; Blue Eagle; Blue Flag)
Good Friday Mine (Good Friday No. 2; St. Louis; Cedar)

Latitude: 31°52'32"N
Longitude: 110°47'34"W
Decimal Degree (lat, lon): 31.875555555556,-110.79277777778

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.

Acanthite	Amphibole	Aragonite	Copper	None	Pyrite	Quartz	Rocksalt	Scheelite

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 Au C Ca Cl Fe H Mg O Pb S Si W

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Amphibole Aragonite Copper None Pyrite Quartz Rocksalt Scheelite

9 IMA Minerals at location:

Acanthite ()*	Anthophyllite ()*	Cerussite ()*	Chlorargyrite ()*	Galena ()*
Gold ()*	Pyrite ()*	Quartz ()*	Scheelite ()*

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
Acanthite ()*	Acanthite	Ag₂S	62	56	2	144358,144359	2793
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	62	56	1	144358	718
Cerussite ()*	Aragonite	Pb(CO₃)	62	56	1	144358	4979
Chlorargyrite ()*	Rocksalt	AgCl	62	56	2	144358,144359	1382
Galena ()*	Rocksalt	PbS	62	56	2	144358,144359	24243
Gold ()*	Copper	Au	62	56	2	144358,144359	30554
Pyrite ()*	Pyrite	FeS₂	62	56	2	144358,144359	39462
Quartz ()*	Quartz	SiO₂	62	56	1	144358	61156
Scheelite ()*	Scheelite	Ca(WO₄)	62	56	2	144358,144359	4894

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-00109	62	56	56-62							Yes		Bornite, Chalcopyrite, Chrysocolla, Diopside, Epidote, Galena, Gold, Magnetite, Molybdenite, Pyrite, Scheelite, Sphalerite, Wollastonite	Cu	49290	Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA	Helvetia	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...