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:
Chester Claim (Evans Group), Gold Hill District (Clifton District), Tooele Co., Utah, USA

Oldest recorded age at locality: 158
Youngest recorded age at locality: 36.1

mindat Locality ID: 180898
mindat URL: http://www.mindat.org/loc-180898.html

Tectonic Settings:

Total number of sublocalities beneath "Chester Claim (Evans Group), Gold Hill District (Clifton District), Tooele Co., Utah, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 40°13'50"N
Longitude: 113°51'12"W
Decimal Degree (lat, lon): 40.230555555556,-113.85333333333

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.

Alunite	Corundum	Malachite	None	Quartz

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: C Cu Fe H K O S Si

Elements from minerals reported directly at this locality: C Cu Fe H K O S Si

Structural Groups for minerals in this locality:
Alunite Corundum Malachite None Quartz

4 IMA Minerals at location:

Hematite ()*	Jarosite ()*	Malachite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Hematite ()*	Corundum	Fe₂O₃	158	36.1	14640
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	158	36.1	2228
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	158	36.1	12537
Quartz ()*	Quartz	SiO₂	158	36.1	61156

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Age from other Locality	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
Kristen000117	38.7	36.1	37.4±1.3	K-Ar	intrustion age	biotite	70-2	Yes	25835	Gold Hill District (Clifton District), Tooele Co., Utah, USA	Gold Hill District	Stacey and Zartmann (1978)	UG5_1
Kristen000118	41.1	38.3	39.7±1.4	K-Ar	intrustion age	biotite	6	Yes	25835	Gold Hill District (Clifton District), Tooele Co., Utah, USA	Gold Hill District	Stacey and Zartmann (1978)	UG5_1
Kristen000119	156	146	151±5	K-Ar	intrustion age	biotite	15A	Yes	25835	Gold Hill District (Clifton District), Tooele Co., Utah, USA	Gold Hill District	Stacey and Zartmann (1978)	UG5_1
Kristen000120	158	148	153±5	K-Ar	intrustion age	biotite	18	Yes	25835	Gold Hill District (Clifton District), Tooele Co., Utah, USA	Gold Hill District	Stacey and Zartmann (1978)	UG5_1

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...