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 Quartz at Downieville District, Sierra Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 388Ma - 388Ma 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-00189	388	388			Cr	93512	Oxford Mine (Oxford Mine And Mill; Oxford Lease And Mill; Becky; Case And Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 Claim; Milton Claim), Downieville, Downieville District, Sierra Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157

Locality age

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
Michelle_0076	4.3	4.1				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0077	3.4	2.6				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0078	3.1	2.7				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0079	3.8	3.6				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0080	2.6	2.2				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0081	2.2	2				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0082	3.6	3.4				93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
Michelle_0083	3.4	3.2	Sanidine			93202	Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA	Fornaseri (1985)	RDSIMF40_73
podchrome-00187	388	388			Cr	93431	White Bear Mine (Unnamed Cr-Au Mine [1]), Fir Cap, Downieville District, Sierra Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00188	388	388			Cr	93266	Fraction Claim (Golconda Mine), Red Ant, Downieville District, Sierra Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00189	388	388			Cr	93512	Oxford Mine (Oxford Mine And Mill; Oxford Lease And Mill; Becky; Case And Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 Claim; Milton Claim), Downieville, Downieville District, Sierra Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157