Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Koktokay No. 1 Pegmatite, Koktokay Pegmatite Field (Keketuohai Pegmatite Field), Fuyun Co. (Koktokay Co.), Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang, China

Oldest recorded age at locality: 208
Youngest recorded age at locality: 178

mindat Locality ID: 135208
mindat URL: http://www.mindat.org/loc-135208.html

Tectonic Settings:

Total number of sublocalities beneath "Koktokay No. 1 Pegmatite, Koktokay Pegmatite Field (Keketuohai Pegmatite Field), Fuyun Co. (Koktokay Co.), Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang, China": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Beryl	Clay	Columbite	Feldspar	Fluorite	Mica	None	Pyroxene	Quartz	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Be H Hf K Li Mn Na Nb O Si Sn Ta U Zr

Elements from minerals reported directly at this locality: Al Be H Hf K Li Mn Na Nb O Si Sn Ta U Zr

Structural Groups for minerals in this locality:
Beryl Clay Columbite Feldspar Fluorite Mica None Pyroxene Quartz Zircon

11 IMA Minerals at location:

Albite ()*	Beryl ()*	Columbite-(Mn) ()*	Hafnon ()*	Muscovite ()*
Quartz ()*	Spodumene ()*	Tantalite-(Mn) ()*	Uraninite ()*	Wodginite ()*
Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	208	178	8803
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	208	178	4286
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	208	178	289
Hafnon ()*	Zircon	Hf(SiO₄)	208	178	11
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	182	178	17380
Quartz ()*	Quartz	SiO₂	208	178	61156
Spodumene ()*	Pyroxene	LiAlSi₂O₆	208	178	688
Tantalite-(Mn) ()*	Columbite	Mn²⁺Ta₂O₆	208	178	211
Uraninite ()*	Fluorite	UO₂	208	178	2718
Wodginite ()*	Columbite	Mn²⁺Sn⁴⁺Ta₂O₈	208	178	78
Zircon ()*	Zircon	Zr(SiO₄)	208	178	5251

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Alexandra-0136	182	178	182-178	Ar-Ar	Age of rock		muscovite			Yes	Muscovite			732	Koktokay Pegmatite Field (Keketuohai Pegmatite Field), Fuyun Co. (Koktokay Co.), Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang, China	Koktokay deposit	Li et al. (2015)	10.1111/1755-6724.12453	AGS89_656
	Alexandra-0137	208	208	208	Re-Os	Age of rock		molybdenite			Yes	Molybdenite			732	Koktokay Pegmatite Field (Keketuohai Pegmatite Field), Fuyun Co. (Koktokay Co.), Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang, China	Koktokay deposit	Li et al. (2015)	10.1111/1755-6724.12453	AGS89_656

Sample	Source Locality	Reference URL
R060252	Koktokay No. 1 Pegmatite, Koktokay Pegmatite Field (Keketuohai Pegmatite Field), Fuyun Co. (Koktokay Co.), Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang, China	https://rruff.info/R060252

All locality data graciously provided by mindat.org

All age data...