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:
Dawes Co., Nebraska, USA

mindat Locality ID: 21664
mindat URL: http://www.mindat.org/loc-21664.html

Tectonic Settings:

Total number of sublocalities beneath "Dawes Co., Nebraska, USA": 8
Total number of bottom-level sublocalities: 6

Number of Child Localities: 5
Child Localities:
Chadron
Crawford
Crow Butte Uranium Deposit
Marsland Meteorite
Whitney

Latitude: 42°38'25"N
Longitude: 103°19'48"W
Decimal Degree (lat, lon): 42.640277777778,-103.33

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.

Amorphous	Autunite	Baryte	Calcite	Gypsum	None	Quartz	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 C Ca H K Mg O P S Si Sr U V

Elements from minerals reported directly at this locality: C Ca H Mg O S Si Sr

Structural Groups for minerals in this locality:
Amorphous Autunite Baryte Calcite Gypsum None Quartz Zircon

10 IMA Minerals at location:

Autunite ()*	Calcite ()*	Carnotite ()*	Celestine ()*	Coffinite ()*
Dolomite ()*	Gypsum ()*	Opal ()*	Quartz ()*	Sabugalite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	1	234359	1272
Calcite ()*	Calcite	Ca(CO₃)	3	234360,234361,234362	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O	1	234359	1184
Celestine ()*	Baryte	Sr(SO₄)	0		1252
Coffinite ()*	Zircon	U(SiO₄)·nH₂O	1	234364	566
Dolomite ()*	None	CaMg(CO₃)₂	0		9895
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	234359	6890
Opal ()*	Amorphous	SiO₂·nH₂O	0		2994
Quartz ()*	Quartz	SiO₂	4	234359,234362,234363,234366	61156
Sabugalite ()*	None	HAl(UO₂)₄(PO₄)₄·16H₂O	1	234362	87

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...