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 Apache Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 105Ma - 0.5Ma 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
Giersdorf_00000642	105	105	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
NAVDAT-34918	9	0.5				72125	Concho Creek Deposit, Concho Creek, Concho, Apache Co., Arizona, USA	NAVDAT	NAVDAT

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
Giersdorf_00000629	60	60	Uraninite	Coffinite, Uraninite		45889	Cato Sells Mine (Cato Sells Monument Mine; Cato Sells Tract 1 And 2), Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000630	65	65	Uraninite	Coffinite, Uraninite		45889	Cato Sells Mine (Cato Sells Monument Mine; Cato Sells Tract 1 And 2), Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000635	70	70	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000636	78	78	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000638	85	85	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000639	90	90	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000641	100	100	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000642	105	105	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
NAVDAT-13043	26.73	21.87				44821	Buell Park, Sawmill, Defiance Plateau, Apache Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-13044	27.5	22.5				249183	Boiling Over Well, Northeast Carrizo Mountains Mining District, Carrizo Range, Apache Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-13045	27.5	22.5				249183	Boiling Over Well, Northeast Carrizo Mountains Mining District, Carrizo Range, Apache Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-13046	27.5	22.5				249183	Boiling Over Well, Northeast Carrizo Mountains Mining District, Carrizo Range, Apache Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-34608	9	0.5				286621	McNary, Apache Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-34918	9	0.5				72125	Concho Creek Deposit, Concho Creek, Concho, Apache Co., Arizona, USA	NAVDAT	NAVDAT

Locality age (deprioritized)

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
Giersdorf_00000631	180	180	Uraninite	Coffinite, Uraninite		45889	Cato Sells Mine (Cato Sells Monument Mine; Cato Sells Tract 1 And 2), Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000637	360	360	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000640	260	260	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000643	280	280	Uraninite	Uraninite		3294	Monument No. 2 Mine, Monument No. 2 Channel, Yazzie Mesa, Cane Valley Mining District, Apache Co., Arizona, USA	Miller et al. (1963)	GSAB74_609