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:
Silver Bell Area, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA

Oldest recorded age at locality: 69
Youngest recorded age at locality: 66

mindat Locality ID: 54228
mindat URL: http://www.mindat.org/loc-54228.html

Tectonic Settings:

Total number of sublocalities beneath "Silver Bell Area, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Clay	Feldspar	Mica	None	Rutile	Smectite-vermiculite	Titanite	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: Al Ca H K Mg Na O Si Ti Zr

Elements from minerals reported directly at this locality: Al Ca H K Mg Na O Si Ti Zr

Structural Groups for minerals in this locality:
Clay Feldspar Mica None Rutile Smectite-vermiculite Titanite Zircon

6 IMA Minerals at location:

Montmorillonite ()*	Muscovite ()*	Orthoclase ()*	Rutile ()*	Titanite ()*
Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	69	66	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	69	66	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	69	66	2349
Rutile ()*	Rutile	TiO₂	69	66	5614
Titanite ()*	Titanite	CaTi(SiO₄)O	69	66	4899
Zircon ()*	Zircon	Zr(SiO₄)	69	66	5251

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-00087	69	66	69-66							Yes		Actinolite, Chalcanthite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Cuprite, Diopside, Epidote, Jarosite, Malachite, Molybdenite, Pyrite, Tenorite, Wollastonite	Cu	31299	Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA	Silver Bell	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...