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 District, Butte Co., California, USA

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

mindat Locality ID: 209116
mindat URL: http://www.mindat.org/loc-209116.html

Tectonic Settings:

Total number of sublocalities beneath "Magalia District, Butte Co., California, USA": 53
Total number of bottom-level sublocalities: 46

Number of Child Localities: 5
Child Localities:
De Sabla
Irish Town
Lovelock
Magalia
Nimshew

Latitude: 39°50'36"N
Longitude: 121°35'46"W
Decimal Degree (lat, lon): 39.843333333333,-121.59611111111

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.

Chalcopyrite	Copper	Corundum	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 Cu Fe Mg O S Si

Elements from minerals reported directly at this locality:

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

7 IMA Minerals at location:

Chalcopyrite ()*	Chromite ()*	Gold ()*	Hematite ()*	Magnesiochromite ()*
Magnetite ()*	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
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	151653	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	204	204	4	151615,151630,151639,151644	3902
Gold ()*	Copper	Au			30	151602,151604,151605,151606,151607,151608,151612,151614,151618,151622,151623,151625,151626,151629,151632,151633,151635,151636,151637,151640,151641,151642,151643,151645,151647,151648,151649,151650,151651,151653	30554
Hematite ()*	Corundum	Fe₂O₃			1	151649	14640
Magnesiochromite ()*	Spinel	MgCr₂O₄	204	204	1	151617	311
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	151649	14899
Quartz ()*	Quartz	SiO₂			15	151605,151614,151623,151625,151626,151629,151633,151636,151637,151638,151641,151642,151645,151647,151653	61156

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
podchrome-00199	204	204	Upper Triassic-Lower Jurassic or older (204±2 Ma U-Pb zircon on leucodiorite)	Cr	74195	Lambert Mine 3 (Lambert Mine), Irish Town, Magalia District, Butte Co., California, USA	Lambert	Moiser et al. (2012)	USGSSIR2012_5157
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...