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:
Dobbins, Dobbins District, Yuba Co., California, USA

mindat Locality ID: 212306
mindat URL: http://www.mindat.org/loc-212306.html

Tectonic Settings:

Total number of sublocalities beneath "Dobbins, Dobbins District, Yuba Co., California, USA": 6
Total number of bottom-level sublocalities: 6

Number of Child Localities: 6
Child Localities:
California Mother Lode Mine (California M Lode Mine; Eagle Mine)
Dobbins Ranch W Deposit (Stephens; Stephene)
Red Cross Mine
Red Ravine Mine
Unnamed Placer Au Occurrence (13)
Without A Doubt Placer Mine

Latitude: 39°22'15"N
Longitude: 121°12'37"W
Decimal Degree (lat, lon): 39.370833333333,-121.21027777778

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.

Arsenopyrite	Chalcopyrite	Copper	Melonite	None	Quartz	Scheelite

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 As Au Ca Cu Fe O S Si Te W

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Arsenopyrite Chalcopyrite Copper Melonite None Quartz Scheelite

6 IMA Minerals at location:

Arsenopyrite ()*	Chalcopyrite ()*	Gold ()*	Quartz ()*	Scheelite ()*
Sylvanite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	1	184028	9052
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	184028	27198
Gold ()*	Copper	Au	2	184031,184033	30554
Quartz ()*	Quartz	SiO₂	1	184029	61156
Scheelite ()*	Scheelite	Ca(WO₄)	1	184029	4894
Sylvanite ()*	Melonite	AgAuTe₄	1	184031	337

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...