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:
Magalia, Magalia District, Butte Co., California, USA

Oldest recorded age at locality: 204
Youngest recorded age at locality: 204

mindat Locality ID: 209117
mindat URL: http://www.mindat.org/loc-209117.html

Tectonic Settings:

Total number of sublocalities beneath "Magalia, Magalia District, Butte Co., California, USA": 14
Total number of bottom-level sublocalities: 13

Number of Child Localities: 8
Child Localities:
Bader Brothers Placer Mine
Big Joe Mine
Chrysoprase Occurrence
Pitts Mine (Mowry And Newman Mine; Bader Mine; Old Bader Mine)
Ramona Mine (Skipper Mine)
Red Hill Mine
Sawmill Peak
Willard Consolidated Quartz Mine (Genii Mine; Genii Mining Company Lease)

Latitude: 39°48'46"N
Longitude: 121°34'12"W
Decimal Degree (lat, lon): 39.812777777778,-121.57

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.

Copper	None	Quartz	Spinel

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: Au Cr Fe O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Copper None Quartz Spinel

3 IMA Minerals at location:

Chromite ()*	Gold ()*	Quartz ()*

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
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	204	204	2	151639,151644	3902
Gold ()*	Copper	Au			10	151632,151633,151635,151636,151637,151640,151641,151642,151643,151645	30554
Quartz ()*	Quartz	SiO₂			7	151633,151636,151637,151638,151641,151642,151645	61156

2 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
	podchrome-00200	204	204	Upper Triassic-Lower Jurassic or older (204±2 Ma U-Pb zircon on leucodiorite)										Cr	74074	Christian Place Occurrence, Sawmill Peak, Magalia, Magalia District, Butte Co., California, USA	Christian Place	Moiser et al. (2012)		USGSSIR2012_5157
	podchrome-00201	204	204	Upper Triassic-Lower Jurassic or older (204±2 Ma U-Pb zircon on leucodiorite)										Cr	74271	Parkeson Claim (Old Utah Mine), Sawmill Peak, Magalia, Magalia District, Butte Co., California, USA	Parkeson Claim	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...