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:
Thompson Cobb Group, Silver Reef District (Harrisburg District), Leeds, Washington Co., Utah, USA

mindat Locality ID: 275966
mindat URL: http://www.mindat.org/loc-275966.html

Tectonic Settings:

Total number of sublocalities beneath "Thompson Cobb Group, Silver Reef District (Harrisburg District), Leeds, Washington Co., Utah, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
McNally Mine - A S & R Shaft
Newton Mine
Thompsons Mine

Latitude: 37°14'43"N
Longitude: 113°22'27"W
Decimal Degree (lat, lon): 37.245277777778,-113.37416666667

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.

Copper	Malachite	None	Not in a structural group	Rocksalt

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 C Cl Cu H O S

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Copper Malachite None Not in a structural group Rocksalt

5 IMA Minerals at location:

Azurite ()*	Chalcocite ()*	Chlorargyrite ()*	Malachite ()*	Silver ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	1	278758	5509
Chalcocite ()*	None	Cu₂S	1	278759	5707
Chlorargyrite ()*	Rocksalt	AgCl	1	278759	1382
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	278759	12537
Silver ()*	Copper	Ag	1	278759	5186

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...