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:
El Portal, Mariposa Co., California, USA

mindat Locality ID: 3499
mindat URL: http://www.mindat.org/loc-3499.html

Tectonic Settings:

Total number of sublocalities beneath "El Portal, Mariposa Co., California, USA": 15
Total number of bottom-level sublocalities: 14

Number of Child Localities: 10
Child Localities:
Barium Queen Claim
Eagle Peak [1]
El Portal Mine (El Portal Barite Mine; Barium 1 Claim; Barium 2 Claim; North Barium Claim; South Barium Claim)
El Rico No. 1 Occurrence
Lucky Spot Group
Merced River Placers
Surprise Placer (Carrie K Quartz; February E Quartz)
Una Placer (Unab Quartz; Unah Quartz)
Unspecified Mo Occurrence [1]
Victory Tungsten Prospect

Latitude: 37°40'30"N
Longitude: 119°47'8"W
Decimal Degree (lat, lon): 37.675,-119.78555555556

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.

Aragonite	Baryte	Molybdenite	None	Pyrite	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: Ba C Ca Fe H Mo O S W

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Baryte Molybdenite None Pyrite Scheelite

6 IMA Minerals at location:

Baryte ()*	Ferrimolybdite ()*	Molybdenite ()*	Pyrite ()*	Scheelite ()*
Witherite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	1	162764	11547
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O	1	162770	345
Molybdenite ()*	Molybdenite	MoS₂	1	162770	5800
Pyrite ()*	Pyrite	FeS₂	1	162764	39462
Scheelite ()*	Scheelite	Ca(WO₄)	1	162760	4894
Witherite ()*	Aragonite	Ba(CO₃)	1	162764	251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...