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 Andradite at South Dakota, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 59Ma - 38Ma 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
NAVDAT-6900	59	38				121691	Bear Gulch Pegmatite Prospect (Elizabeth No. 8 Claim), Tinton Pegmatite District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT

Locality age (prioritized)

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
Jen_0000007	1725	1695				122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Černý (1991)	PR51_429
Jen_0000007a	1718	1712	Zircon			122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Černý (1991)	PR51_429

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
Alexandra-0270	1640	1640	Muscovite			4106	Etta Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA	Riley (1970)	GCA34_713
Alexandra-0372	1700	1700			Li,Be,Sn,Cs,Ta,Nb,U	122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Norton and Redden (1990)	AM75_631
Be-00023	1702	1702		Ehrleite, Fransoletite, Greifensteinite, Pahasapaite, Parafransoletite, Roscherite, Tiptopite	Be	4122	Tip Top Mine (Tip Top Pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA	Dahl and Foland (2008)	AM93_1215
Be-00046	1702	1702		Faheyite	Be	45259	Roosevelt Group (Rough Rider), Custer, Custer District, Custer Co., South Dakota, USA	Dahl and Foland (2008)	AM93_1215
Grew_Li_2019_0108	1702	1702		Tavorite		4122	Tip Top Mine (Tip Top Pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA	Dahl and Foland (2008)	AM93_1215
Grew_Li_2019_0109	1702	1702		Tiptopite		4122	Tip Top Mine (Tip Top Pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA	Dahl and Foland (2008)	AM93_1215
Jen_0000007b	2160	2000				122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Černý (1991)	PR51_429
Jen_0000007c	2400	2000				122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Černý (1991)	PR51_429
Michelle_575	83.6	72.1		Whewellite		4116	Meade Co., South Dakota, USA	Campbell and Roberts (1986)	MR17_131
NAVDAT-16731	60	39				45297	Spearfish Peak (Black Butte), Spearfish, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-2703	60	39				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-2704	60	39				122399	Tetro Rock, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-2705	60	39				30932	Davier Mine, Annie Creek, Bald Mountain District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4705	55	40				122354	Terry Peak, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4722	55	40				121686	Astoria Shaft, Ruby Basin District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4724	55	40				121686	Astoria Shaft, Ruby Basin District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4725	55	40				121808	National Gold And Silver Company Mine, Ruby Basin District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4740	55	40				11496	Grants Mine (Hidden Fortune Mine; Sula Claim; Brunnett Claim; St. Patrick Claim; Swamp Eagle Claim; Bingham Claim; Grant Reddy Claim; Iowa Claim; Golden Crown Claim), Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4742	55	40				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4743	55	40				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4744	55	40				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4745	55	40				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4746	55	40				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4747	55	40				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4759	55	40				121799	Minnesota Group (Garden City Claim; Big Red Claim; Dauntless Claim), Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4767	55	40				45297	Spearfish Peak (Black Butte), Spearfish, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4768	55	40				45297	Spearfish Peak (Black Butte), Spearfish, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4776	58	50				121677	Alpine - Strawberry Mining Company (New Era Mining Company), Black Hills District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4777	58	50				121677	Alpine - Strawberry Mining Company (New Era Mining Company), Black Hills District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4780	58	50				121677	Alpine - Strawberry Mining Company (New Era Mining Company), Black Hills District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-4781	58	50				121677	Alpine - Strawberry Mining Company (New Era Mining Company), Black Hills District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5869	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5870	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5871	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5872	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5873	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5874	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5875	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5876	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5877	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5878	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5879	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5880	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5881	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5882	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5883	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5884	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-5885	55	45				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-6900	59	38				121691	Bear Gulch Pegmatite Prospect (Elizabeth No. 8 Claim), Tinton Pegmatite District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92273	54.85	54.47				30932	Davier Mine, Annie Creek, Bald Mountain District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92274	58	46				44879	Bear Butte, Meade Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92295	58	46				11496	Grants Mine (Hidden Fortune Mine; Sula Claim; Brunnett Claim; St. Patrick Claim; Swamp Eagle Claim; Bingham Claim; Grant Reddy Claim; Iowa Claim; Golden Crown Claim), Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92297	58	46				121730	Echo Mine, Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92298	58	46				11496	Grants Mine (Hidden Fortune Mine; Sula Claim; Brunnett Claim; St. Patrick Claim; Swamp Eagle Claim; Bingham Claim; Grant Reddy Claim; Iowa Claim; Golden Crown Claim), Lead District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92330	58	46				121728	Eagle Bird Mine, Ragged Top District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92333	58	46				121812	Oro Fino Mine, Galena District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92337	58	46				122218	Bear Den Mountain, Galena, Galena District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92342	58	46				45297	Spearfish Peak (Black Butte), Spearfish, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92344	58	46				23014	Silver Queen Mine (New Silver Queen Mine), Deadwood, Galena District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92355	58	46				121691	Bear Gulch Pegmatite Prospect (Elizabeth No. 8 Claim), Tinton Pegmatite District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92367	58	46				121697	Black Diamond Mine (Black Diamond Group; Spearfish Gold Mining Company), Ragged Top District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92368	58	46				121677	Alpine - Strawberry Mining Company (New Era Mining Company), Black Hills District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
Scott-GCA51_1101-0001	1710	1580				4121	Tin Mountain Mine, Fourmile, Custer District, Custer Co., South Dakota, USA	Clark and Černý (1987)	GCA51_1101
USGS-Rb-Sr-00189	1783.5	1603.5	Muscovite			8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-00190	1695.19	1535.19				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-00424	1585.82	1585.82				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04812	1871.18	1731.18				122233	Little Elk Creek Canyon, Piedmont, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04818	1871.18	1731.18				122087	Little Elk Creek, Nemo, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04819	1871.18	1731.18				122087	Little Elk Creek, Nemo, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04822	1863.36	1863.36				122087	Little Elk Creek, Nemo, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-U-Th-Pb-00031_206_238	1648.5	1488.5				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00031_207_206	1673.5	1513.5				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00031_207_235	1659.2	1499.2				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00211_206_238	1608.2	1598.2				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00211_207_206	1591.9	1571.9				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00211_207_235	1599	1589				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00212_206_238	1384.9	1374.9				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00212_207_206	1547.4	1517.4				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00212_207_235	1446	1436				8771	Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01881_206_238	767	767	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01881_207_206	1685	1685	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01881_207_235	1046	1046	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01882_206_238	274	274	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01882_207_206	1537	1537	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01882_207_235	459	459	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01883_206_238	1709	1709				121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01883_207_206	1715	1715				121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01883_207_235	1712	1712				121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb