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:
Delmas Mine (Sweepstakes Mine; Delmas SW Mine; Como Mine), Nevada Bunker Hill Mines, Alladin Group, Railroad District, Elko Co., Nevada, USA

Oldest recorded age at locality: 40.7
Youngest recorded age at locality: 33.3

mindat Locality ID: 41511
mindat URL: http://www.mindat.org/loc-41511.html

Tectonic Settings:

Total number of sublocalities beneath "Delmas Mine (Sweepstakes Mine; Delmas SW Mine; Como Mine), Nevada Bunker Hill Mines, Alladin Group, Railroad District, Elko Co., Nevada, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 40°31'0"N
Longitude: 116°'52"W
Decimal Degree (lat, lon): 40.516666666667,-116.01444444444

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.

Amphibole	Chalcopyrite	Copper	Epidote	Nickeline	None	Pyrite	Pyroxene	Quartz	Rocksalt
Sphalerite

Bornite ()*	Chalcocite ()*	Chalcopyrite ()*	Copper ()*	Diopside ()*
Galena ()*	Gold ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Sphalerite ()*	Tenorite ()*	Tremolite ()*	Zoisite ()*

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 Au Ca Cu Fe H Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Al Au Ca Cu Fe H Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Amphibole Chalcopyrite Copper Epidote Nickeline None Pyrite Pyroxene Quartz Rocksalt
Sphalerite

14 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Bornite ()*	None	Cu₅FeS₄	40.7	33.3	5516
Chalcocite ()*	None	Cu₂S	40.7	33.3	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	40.7	33.3	27198
Copper ()*	Copper	Cu	40.7	33.3	3846
Diopside ()*	Pyroxene	CaMgSi₂O₆	40.7	33.3	4135
Galena ()*	Rocksalt	PbS	40.7	33.3	24243
Gold ()*	Copper	Au	40.7	33.3	30554
Pyrite ()*	Pyrite	FeS₂	40.7	33.3	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	40.7	33.3	9056
Quartz ()*	Quartz	SiO₂	40.7	33.3	61156
Sphalerite ()*	Sphalerite	ZnS	40.7	33.3	21482
Tenorite ()*	None	CuO	40.7	33.3	1101
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	40.7	33.3	2562
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	40.7	33.3	1025

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
	NAVDAT-117347	40.7	33.3	37±3.7					117347						41511	Delmas Mine (Sweepstakes Mine; Delmas SW Mine; Como Mine), Nevada Bunker Hill Mines, Alladin Group, Railroad District, Elko Co., Nevada, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...