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 Dravite at Nakatsugawa, Ohtaki-mura, Chichibu City, Saitama, Japan

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

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
sedznpb-00276	7.3	5.5				2177	Chichibu Mining District (Chichibu Mine), Nakatsugawa, Ohtaki-mura, Chichibu City, Saitama, Japan	Singer et al. (2009)	USGSOFR2009-1252