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 Pollucite at Himalaya Mine (Himalaya Dikes; Himalaya Pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 143Ma - 92.8Ma at this locality

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Dated Locality ID	Dated Locality	Ref	Ref ID
Bradley_2012_108	96	94	Muscovite		3559	Himalaya Mine (Himalaya Dikes; Himalaya Pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA	McCauley and Bradley (2014)	CM52_183
Giersdorf_00000326	95.7	95.1		Muscovite	3559	Himalaya Mine (Himalaya Dikes; Himalaya Pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA	Fisher et al. (1999)	RM73_156
Giersdorf_00000327	93.7	93.1			3559	Himalaya Mine (Himalaya Dikes; Himalaya Pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA	Fisher et al. (1999)	RM73_156
Giersdorf_00000328	93.4	92.8			3559	Himalaya Mine (Himalaya Dikes; Himalaya Pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA	Fisher et al. (1999)	RM73_156
Giersdorf_00000329	143	101			3559	Himalaya Mine (Himalaya Dikes; Himalaya Pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA	Fisher et al. (1999)	RM73_156