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 Virgin Mts, Clark Co., Nevada, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1650Ma - 1390Ma at this locality

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Dated Locality ID	Dated Locality	Ref	Ref ID
Jen_0000056	1650	1650		65120	Virgin Mts, Clark Co., Nevada, USA	Wasserburg and Lanphere (1965)	GSAB76_735
Jen_0000056a	1446	1390		65120	Virgin Mts, Clark Co., Nevada, USA	Wasserburg and Lanphere (1965)	GSAB76_735
Jen_0000056b	1456	1456	Microcline	65120	Virgin Mts, Clark Co., Nevada, USA	Wasserburg and Lanphere (1965)	GSAB76_735