Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Magnesiochromite at El Dorado Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 388Ma - 164Ma at this locality

Age range from children

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
podchrome-00123	388	388			Cr	78187	Shelley Mine (Wolf Mine; Shelly Mine; Shelley Wolf Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00106	164	164			Cr	77385	Burnett Property (Burnett Ranch), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157

Mineralization age

Excel ID	Max Age (Ma)	Min Age (Ma)	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
podchrome-00102	311	311	Cr	77966	Murphy Mine, Latrobe, Latrobe District, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00103	311	311	Cr	78207	Smith Mine, Latrobe, Latrobe District, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00104	311	311	Cr	77787	Joerger Mine (Joerger Property; Joerger Deposit), El Dorado Hills, Clarksville District, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00106	164	164	Cr	77385	Burnett Property (Burnett Ranch), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00107	164	164	Cr	78059	Pillikin Mine Area 1 (East Basin), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00108	164	164	Cr	78062	Pillikin Mine Area 2 (Bonanza King Mine), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00109	164	164	Cr	78063	Pillikin Mine Area 3 (West Basin), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00110	164	164	Cr	78057	Pillikin Mine Area 4 (Chrome Gulch), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00113	164	164	Cr	78067	Pillikin Mine Area 8, Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00114	164	164	Cr	78068	Pillikin Mine Area 9, Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00115	164	164	Cr	78064	Pillikin Mine Area 5 (Placer Chrome Company Workings; Placer Chrome Company Mine; Placer Chrome Mine), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00116	164	164	Cr	77493	Darrington Mine (Darington Deposit; Darington Gurney; Gurney Property; McGuire; Holbrook), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00118	311	311	Cr	78403	Williamson Mine (Hector Williamson), Cold Springs, Shingle Springs District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00119	388	388	Cr	77910	McCurdy Mine [2], Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00120	388	388	Cr	77999	O'Brien Mine (S-Bend Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00121	388	388	Cr	78196	Simon Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00122	388	388	Cr	78196	Simon Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00123	388	388	Cr	78187	Shelley Mine (Wolf Mine; Shelly Mine; Shelley Wolf Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00124	388	388	Cr	78357	Veer Kamp Mine (Veerkamp; Gold Coin), Garden Valley, Kelsey District, Mother Lode Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00125	388	388	Cr	78190	Sheppard Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00126	311	311	Cr	77415	Central Pacific Railroad Mine (Central Pacific R. R.; Central Pac. R.R.), Penobscot Farm, Greenwood District, Northwest Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00127	388	388	Cr	77330	Black Oak Mine [1], Garden Valley, Kelsey District, Mother Lode Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00128	388	388	Cr	77679	Green Claim, Meadow Brook, Georgetown District, East Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00129	388	388	Cr	78002	Ogle Mine, Volcanoville, Volcanoville District, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Locality ID	Dated Locality	Ref	Ref ID
NAVDAT-54535	31.1	26.34	77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA	NAVDAT	NAVDAT
NAVDAT-54536	31.1	26.34	77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA	NAVDAT	NAVDAT
NAVDAT-54537	26.34	19.21	77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA	NAVDAT	NAVDAT
NAVDAT-54538	26.34	19.21	77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA	NAVDAT	NAVDAT
NAVDAT-54539	23.9	22.7	265875	Aukum, El Dorado Co., California, USA	NAVDAT	NAVDAT