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:
Ibex Mine (Little Jonny Mine), Breece Hill, Leadville, Leadville District, Lake Co., Colorado, USA

Oldest recorded age at locality: 41.3
Youngest recorded age at locality: 37.9

mindat Locality ID: 3647
mindat URL: http://www.mindat.org/loc-3647.html

Tectonic Settings:

Total number of sublocalities beneath "Ibex Mine (Little Jonny Mine), Breece Hill, Leadville, Leadville District, Lake Co., Colorado, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Garbutt Mine

Latitude: 39°14'34"N
Longitude: 106°13'58"W
Decimal Degree (lat, lon): 39.242777777778,-106.23277777778

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.

Allophane	Amorphous	Apatite	Aragonite	Calcite	Chalcanthite	Columbite	Copper	Descloizite	Diaspore
Minium	None	Not in a structural group	Pyrite	Quartz	Rocksalt	Scheelite	Sphalerite	Spinel	Tetrahedrite
Vivianite

Altaite ()*	Aurichalcite ()*	Cerussite ()*	Chalcanthite ()*	Chalcocite ()*
Chlorargyrite ()*	Chrysocolla ()*	Copper ()*	Descloizite ()*	Goethite ()*
Gold ()*	Hemimorphite ()*	Hübnerite ()*	Magnetite ()*	Minium ()*
Opal ()*	Pyrite ()*	Pyromorphite ()*	Quartz ()*	Scheelite ()*
Siderite ()*	Smithsonite ()*	Sphalerite ()*	Tetrahedrite-(Zn) ()*	Vivianite ()*

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 C Ca Cl Cu Fe H Mn O P Pb S Sb Si Te V W Zn

Elements from minerals reported directly at this locality: Ag Al Au C Cl Cu Fe H O P Pb S Sb Si V Zn

Structural Groups for minerals in this locality:
Allophane Amorphous Apatite Aragonite Calcite Chalcanthite Columbite Copper Descloizite Diaspore
Minium None Not in a structural group Pyrite Quartz Rocksalt Scheelite Sphalerite Spinel Tetrahedrite
Vivianite

25 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Altaite ()*	Rocksalt	PbTe	41.3	37.9	1	191411	489
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆	41.3	37.9	0		919
Cerussite ()*	Aragonite	Pb(CO₃)	41.3	37.9	0		4979
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	41.3	37.9	0		925
Chalcocite ()*	None	Cu₂S	41.3	37.9	0		5707
Chlorargyrite ()*	Rocksalt	AgCl	41.3	37.9	0		1382
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	41.3	37.9	0		3531
Copper ()*	Copper	Cu	41.3	37.9	0		3846
Descloizite ()*	Descloizite	PbZn(VO₄)(OH)	41.3	37.9	0		378
Goethite ()*	Diaspore	FeO(OH)	41.3	37.9	0		7437
Gold ()*	Copper	Au	41.3	37.9	0		30554
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	41.3	37.9	0		1689
Hübnerite ()*	Columbite	Mn²⁺(WO₄)	41.3	37.9	1	191411	469
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	41.3	37.9	0		14899
Minium ()*	Minium	Pb²⁺₂Pb⁴⁺O₄	41.3	37.9	0		247
Opal ()*	Amorphous	SiO₂·nH₂O	41.3	37.9	0		2994
Pyrite ()*	Pyrite	FeS₂	41.3	37.9	1	191411	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	41.3	37.9	0		1725
Quartz ()*	Quartz	SiO₂	41.3	37.9	1	191411	61156
Scheelite ()*	Scheelite	Ca(WO₄)	41.3	37.9	1	191411	4894
Siderite ()*	Calcite	Fe(CO₃)	41.3	37.9	1	191411	6417
Smithsonite ()*	Calcite	Zn(CO₃)	41.3	37.9	0		2473
Sphalerite ()*	Sphalerite	ZnS	41.3	37.9	1	191411	21482
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	41.3	37.9	0		5317
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O	41.3	37.9	0		636

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	sedznpb-00472	41.3	37.9	39.6±1.7							Yes				3652	Leadville, Leadville District, Lake Co., Colorado, USA	Leadville	Singer et al. (2009)		USGSOFR2009-1252

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...