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 Gila Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 61.6Ma - 0.85Ma 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
Mo-00258	61.6	59.2		Koechlinite, Lindgrenite, Molybdenite, Powellite	Mo	50636	Inspiration Mine, Miami-Inspiration Deposit, Inspiration, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	Creasey (1980)	EG75_830
Giersdorf_00000290	1.01	0.85				3330	San Carlos, San Carlos Indian Reservation, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12__201

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
CMP76_84_001	38	34	Forsterite		6807	San Carlos Indian Reservation, Gila Co., Arizona, USA	Bernatowicz (1981)	CMP76_84
CMP76_84_002	0.438	0			6807	San Carlos Indian Reservation, Gila Co., Arizona, USA	Bernatowicz (1981)	CMP76_84
EG94_211-00024	76	76			31783	Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00025	76	76			31783	Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00026	72	72			31783	Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00027	62	62			31783	Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00028	62	62			31783	Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	Bouse et al. (1999)	EG94_211
Giersdorf_00000290	1.01	0.85			3330	San Carlos, San Carlos Indian Reservation, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12__201
Giersdorf_00000315	1440	1360	Muscovite		48641	Pioneer Mine (Great Republic Mine; Old Pioneer; White Metal; White Metal Mining Co. Claims; Great Republic Patent MS 370; Devine Property; Pioneer South Patent MS 374), Pioneer Mountain, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000316	1660	1580	Muscovite		48641	Pioneer Mine (Great Republic Mine; Old Pioneer; White Metal; White Metal Mining Co. Claims; Great Republic Patent MS 370; Devine Property; Pioneer South Patent MS 374), Pioneer Mountain, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000367	57.2	54.4			24945	Globe-Miami District, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000471	8.05	6.87			40777	Bucket Mountain Prospect, Bucket Mountain Area, San Carlos Indian Reservation, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000474	5.41	5.15			6807	San Carlos Indian Reservation, Gila Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Hg-00089	65	2.6	Calomel, Cinnabar, Mercury, Metacinnabar, Eglestonite	Hg	31579	Sunflower District (Mazatzal Mountains District; Quicksilver District), Mazatzal Mts, Gila Co., Arizona, USA	Beckman and Kerns (1965); Eastoe et al. (1990)
Mo-00258	61.6	59.2	Koechlinite, Lindgrenite, Molybdenite, Powellite	Mo	50636	Inspiration Mine, Miami-Inspiration Deposit, Inspiration, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	Creasey (1980)	EG75_830
Mo-00280	61.6	59.2	Powellite, Szenicsite	Mo	61469	Carlota Mine (Carlotta Mine; Carlota Property; Carlota Deposit; Cactus Deposit; Brewery Mine; Brewery Claims; Alexander Mine), Top Of The World, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	Creasey (1980)	EG75_830
NAVDAT-30000	66	54			31783	Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51584	2000	0			56520	Madera Prospect (Madera Claims), Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51585	2000	0			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51586	2000	0			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51599	62.8	60.6			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51601	2000	0			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51606	64.4	61.8			132663	Bluebird Mine (Bluebird Group), Miami, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51614	2000	0			132276	Roscoe Group, Needle Mountain Area, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51615	2000	0			134166	Silver Span Prospect, Top Of The World Area, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51616	2000	0			132276	Roscoe Group, Needle Mountain Area, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51621	2000	0			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51623	2000	0			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51624	2000	0			133314	Lonesome Pine And Esther Groups, Madera Peak Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51625	2000	0			67632	Azurite Mine (Blue Bell), Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51626	2000	0			61478	King Group Of Claims (King No. 1-2-3 Claims), Little Acres Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT
PorphCu-00010	64	63	Actinolite, Bornite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Cubanite, Diopside, Epidote, Galena, Hematite, Jarosite, Kaolinite, Magnetite, Molybdenite, Pyrite, Pyrrhotite, Rutile, Sphalerite	Cu	3326	Christmas Mine (Red Bird Shafts; Inspiration Mine; Hackberry Shafts), Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00081	59	59	Chalcanthite, Chalcocite, Chalcopyrite, Copper, Covellite, Cuprite, Epidote, Fluorite, Gypsum, Kaolinite, Molybdenite, Pyrite, Silver, Turquoise	Cu	28230	Castle Dome Mine (Castle Dome Deposit; Pinto Valley Deposit), Castle Dome Area (Castle Dome Mine Area; Pinto Valley Mine Area), Inspiration, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00106	61	61		Cu	48325	Gibson Mine (Bellevue-Old Site; Claims MS 2219; Reynolds Group), Bellvue Town Site, Five Point Mountain Area, Top Of The World Area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00125	64	63	Atacamite, Bornite, Brochantite, Chalcanthite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Cuprite, Epidote, Galena, Kaolinite, Molybdenite, Pyrite, Sphalerite, Turquoise	Cu	61612	Miami-Inspiration Deposit, Inspiration, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155

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
NAVDAT-51578	2000	0				132409	Mellor Prospect, Christmas, Christmas Area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA	NAVDAT	NAVDAT