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:
Jefferson Co., Nebraska, USA

mindat Locality ID: 21665
mindat URL: http://www.mindat.org/loc-21665.html

Tectonic Settings:

Total number of sublocalities beneath "Jefferson Co., Nebraska, USA": 5
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Endicott
Fairbury
Steele City

Latitude: 40°3'5"N
Longitude: 97°4'14"W
Decimal Degree (lat, lon): 40.051388888889,-97.070555555556

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.

Amarantite	Calcite	Copiapite	Coquimbite	Diaspore	Gypsum	Marcasite	None	Not in a structural group	Pyrite
Quartz

Alunogen ()*	Calcite ()*	Copiapite ()*	Coquimbite ()*	Goethite ()*
Gypsum ()*	Marcasite ()*	Meta-alunogen ()*	Metahohmannite ()*	Paracoquimbite ()*
Pyrite ()*	Quartz ()*	Siderite ()*

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 C Ca Fe H O S Si

Elements from minerals reported directly at this locality: C Fe O

Structural Groups for minerals in this locality:
Amarantite Calcite Copiapite Coquimbite Diaspore Gypsum Marcasite None Not in a structural group Pyrite
Quartz

13 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	1	234443	272
Calcite ()*	Calcite	Ca(CO₃)	1	234442	27770
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	1	234443	382
Coquimbite ()*	Coquimbite	AlFe₃(SO₄)₆(H₂O)₁₂·6H₂O	1	234443	136
Goethite ()*	Diaspore	FeO(OH)	1	234442	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	234443	6890
Marcasite ()*	Marcasite	FeS₂	1	234441	5674
Meta-alunogen ()*	None	Al₂(SO₄)₃·14H₂O	1	234443	8
Metahohmannite ()*	Amarantite	Fe³⁺₂O(SO₄)₂·4H₂O	1	234443	9
Paracoquimbite ()*	Coquimbite	Fe³⁺₄(SO₄)₆(H₂O)₁₂·6H₂O	1	234443	30
Pyrite ()*	Pyrite	FeS₂	1	234443	39462
Quartz ()*	Quartz	SiO₂	2	234442,234444	61156
Siderite ()*	Calcite	Fe(CO₃)	0		6417

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...