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:
Expectation Mountain, Rico District (Pioneer District), Dolores Co., Colorado, USA

mindat Locality ID: 69296
mindat URL: http://www.mindat.org/loc-69296.html

Tectonic Settings:

Total number of sublocalities beneath "Expectation Mountain, Rico District (Pioneer District), Dolores Co., Colorado, USA": 6
Total number of bottom-level sublocalities: 6

Number of Child Localities: 6
Child Localities:
Aztec Mine
Bancroft Mine
Iron Clad Mine
Jones Mine (St. Louis Claim)
Sambo Mine
Shamrock Mine

Latitude: 37°41'33"N
Longitude: 108°2'17"W
Decimal Degree (lat, lon): 37.6925,-108.03805555556

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.

Andalusite	Argyrodite	Baryte	Beryl	Calcite	Chalcopyrite	Copper	None	Polybasite	Pyrite
Quartz	Rocksalt	Sphalerite	Spinel	Tetrahedrite

Andalusite ()*	Argyrodite ()*	Baryte ()*	Calcite ()*	Chalcopyrite ()*
Cordierite ()*	Galena ()*	Gold ()*	Magnetite ()*	Polybasite ()*
Pyrargyrite ()*	Pyrite ()*	Quartz ()*	Silver ()*	Sphalerite ()*
Tetrahedrite-(Zn) ()*

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 Al Au Ba C Ca Cu Fe Ge Mg O Pb S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Andalusite Argyrodite Baryte Beryl Calcite Chalcopyrite Copper None Polybasite Pyrite
Quartz Rocksalt Sphalerite Spinel Tetrahedrite

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Andalusite ()*	Andalusite	Al₂SiO₅	1	187566	1310
Argyrodite ()*	Argyrodite	Ag₈GeS₆	1	187563	62
Baryte ()*	Baryte	Ba(SO₄)	1	187561	11547
Calcite ()*	Calcite	Ca(CO₃)	2	187563,187564	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	3	187563,187565,187566	27198
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	1	187566	1008
Galena ()*	Rocksalt	PbS	2	187561,187563	24243
Gold ()*	Copper	Au	3	187561,187563,187564	30554
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	187566	14899
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]	1	187563	716
Pyrargyrite ()*	None	Ag₃SbS₃	1	187563	1425
Pyrite ()*	Pyrite	FeS₂	5	187561,187563,187564,187565,187566	39462
Quartz ()*	Quartz	SiO₂	4	187561,187563,187564,187565	61156
Silver ()*	Copper	Ag	1	187561	5186
Sphalerite ()*	Sphalerite	ZnS	4	187561,187562,187565,187566	21482
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	1	187561	5317

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...