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 Opal at Archstone, Agoura Hills, Santa Monica Mts, Los Angeles Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 16Ma - 13Ma at this locality

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
NAVDAT-7123	16	13				263811	Melanophlogite Outcrop, Archstone, Agoura Hills, Santa Monica Mts, Los Angeles Co., California, USA	NAVDAT	NAVDAT