Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Green River Formation, Piceance Basin, Rio Blanco Co., Colorado, USA

mindat Locality ID: 122867
mindat URL: http://www.mindat.org/loc-122867.html

Tectonic Settings:

Total number of sublocalities beneath "Green River Formation, Piceance Basin, Rio Blanco Co., Colorado, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Mahogany Zone
Parachute Creek Member

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Calcite	Feldspar	Marcasite	Nickeline	None	Northupite	Pyrite	Pyroxene	Rocksalt	Wurtzite

Aegirine ()*	Albite ()*	Ankerite ()*	Barytocalcite ()*	Dawsonite ()*
Halite ()*	Magnesite ()*	Marcasite ()*	Nahcolite ()*	Northupite ()*
Orthoclase ()*	Pyrite ()*	Pyrrhotite ()*	Searlesite ()*	Shortite ()*
Siderite ()*	Trona ()*	Wegscheiderite ()*	Wurtzite ()*

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 B Ba C Ca Cl Fe H K Mg Na O S Si Zn

Elements from minerals reported directly at this locality: Al Ba C Ca Fe H K Mg Na O S Si Zn

Structural Groups for minerals in this locality:
Calcite Feldspar Marcasite Nickeline None Northupite Pyrite Pyroxene Rocksalt Wurtzite

19 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	0		1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	0		8803
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	195343	3092
Barytocalcite ()*	None	BaCa(CO₃)₂	0		83
Dawsonite ()*	None	NaAl(CO₃)(OH)₂	0		90
Halite ()*	Rocksalt	NaCl	1	195344	1398
Magnesite ()*	Calcite	Mg(CO₃)	0		1487
Marcasite ()*	Marcasite	FeS₂	0		5674
Nahcolite ()*	None	NaH(CO₃)	1	195344	78
Northupite ()*	Northupite	Na₃Mg(CO₃)₂Cl	1	195344	31
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	0		2349
Pyrite ()*	Pyrite	FeS₂	0		39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	0		9056
Searlesite ()*	None	NaBSi₂O₅(OH)₂	1	195344	34
Shortite ()*	None	Na₂Ca₂(CO₃)₃	1	195344	37
Siderite ()*	Calcite	Fe(CO₃)	0		6417
Trona ()*	None	Na₃(HCO₃)(CO₃)·2H₂O	1	195344	129
Wegscheiderite ()*	None	Na₅H₃(CO₃)₄	1	195344	8
Wurtzite ()*	Wurtzite	ZnS	0		372

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...