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 Stilpnomelane at Yamada-machi, Shimohei District, Iwate, Japan

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 247Ma - 201Ma 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
Scott-RG55_311-0001	247	201			Mn	159512	Otaniyama Mine, Yamada-machi, Shimohei District, Iwate, Japan	Nakae and Komuro (2005)	RG55_311

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
Scott-RG55_311-0001	247	201			Mn	159512	Otaniyama Mine, Yamada-machi, Shimohei District, Iwate, Japan	Nakae and Komuro (2005)	RG55_311