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 Columbite-(Fe) at Okongava Ost Farm 72, Karibib, Erongo Region, Namibia

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 511.7Ma - 487.7Ma 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
Alexandra-0266	511.7	487.7	Columbite-(Mn)		Ta,Nb	19876	Rubikon Mine (Rubicon Mine), Okongava Ost Farm 72, Karibib, Erongo Region, Namibia	Melcher et al. (2015)	OGR64_667

Mineralization 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-0264	508.1	502.9	Columbite-(Mn)		Ta,Nb	19876	Rubikon Mine (Rubicon Mine), Okongava Ost Farm 72, Karibib, Erongo Region, Namibia	Melcher et al. (2015)	OGR64_667
Alexandra-0265	508.3	503.7	Columbite-(Mn)		Ta,Nb	19876	Rubikon Mine (Rubicon Mine), Okongava Ost Farm 72, Karibib, Erongo Region, Namibia	Melcher et al. (2015)	OGR64_667
Alexandra-0266	511.7	487.7	Columbite-(Mn)		Ta,Nb	19876	Rubikon Mine (Rubicon Mine), Okongava Ost Farm 72, Karibib, Erongo Region, Namibia	Melcher et al. (2015)	OGR64_667

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-0160	551	479				19876	Rubikon Mine (Rubicon Mine), Okongava Ost Farm 72, Karibib, Erongo Region, Namibia	Haack and Gohn (1988)	CGSSWAN4_15
Scott-CGSN8_5-0005	551	479				19876	Rubikon Mine (Rubicon Mine), Okongava Ost Farm 72, Karibib, Erongo Region, Namibia	Steven et al. (1993)	CGSN8_5