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:
Xenolith No. 7, Lakargi Mt., Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera), Baksan Valley, Kabardino-Balkaria, Russia

Oldest recorded age at locality: 3
Youngest recorded age at locality: 2.3

mindat Locality ID: 267814
mindat URL: http://www.mindat.org/loc-267814.html

Tectonic Settings:

Total number of sublocalities beneath "Xenolith No. 7, Lakargi Mt., Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera), Baksan Valley, Kabardino-Balkaria, Russia": 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.

Ettringite	Fluorite	Garnet	Humite	None	Not in a structural group	Perovskite	Spurrite-Afwillite	Wöhlerite

Bultfonteinite ()*	Chegemite ()*	Cuspidine ()*	Ettringite ()*	Fluorite ()*
Irinarassite ()*	Lakargiite ()*	Larnite ()*	Reinhardbraunsite ()*	Rondorfite ()*
Usturite ()*	Vorlanite ()*

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 Ca Cl F Fe H Mg O S Sb Si Sn U Zr

Elements from minerals reported directly at this locality: Al Ca Cl F Fe H Mg O S Sb Si Sn U Zr

Structural Groups for minerals in this locality:
Ettringite Fluorite Garnet Humite None Not in a structural group Perovskite Spurrite-Afwillite Wöhlerite

12 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Bultfonteinite ()*	Spurrite-Afwillite	Ca₂SiO₃(OH)F·H₂O	3	2.3	20
Chegemite ()*	Humite	Ca₇(SiO₄)₃(OH)₂	3	2.3	2
Cuspidine ()*	Wöhlerite	Ca₈(Si₂O₇)₂F₄	3	2.3	67
Ettringite ()*	Ettringite	Ca₆Al₂(SO₄)₃(OH)₁₂·27H₂O	3	2.3	93
Fluorite ()*	Fluorite	CaF₂	3	2.3	9617
Irinarassite ()*	Garnet	Ca₃Sn₂(SiAl₂)O₁₂	3	2.3	1
Lakargiite ()*	Perovskite	CaZrO₃	3	2.3	10
Larnite ()*	Not in a structural group	Ca₂(SiO₄)	3	2.3	48
Reinhardbraunsite ()*	Humite	Ca₅(SiO₄)₂(OH)₂	3	2.3	9
Rondorfite ()*	None	Ca₈Mg(SiO₄)₄Cl₂	3	2.3	7
Usturite ()*	Garnet	Ca₃(SbZr)(FeO₄)₃	3	2.3	1
Vorlanite ()*	Fluorite	CaUO₄	3	2.3	5

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Age from other Locality	Minerals explicitely stated as having this age	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Alexandra-0094	3	2.8	3.0-2.8	K-Ar	Age of rock	Yes		241014	Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera), Baksan Valley, Kabardino-Balkaria, Russia	Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera)	Zadov et al. (2011)	10.1134/S1075701511080186	GOD53_775
Alexandra-0095	2.7	2.3	2.5 ± 0.2	K-Ar	Age of rock	Yes		241014	Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera), Baksan Valley, Kabardino-Balkaria, Russia	Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera)	Zadov et al. (2011)	10.1134/S1075701511080186	GOD53_775
Alexandra-0096	2.7	2.7	2.7	Ar-Ar	Age of rock	Yes		241014	Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera), Baksan Valley, Kabardino-Balkaria, Russia	Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera)	Zadov et al. (2011)	10.1134/S1075701511080186	GOD53_775
Grew_Li_2019_0062	3	3	3			Yes	Magnesioneptunite	267813	Xenolith No. 5, Lakargi Mt., Upper Chegem Volcanic Caldera (Verkhnechegemskaya Caldera), Baksan Valley, Kabardino-Balkaria, Russia	Xenolith #5, Upper Chegem caldera, near Mount Lakargi, Kabardino–Balkaria, North Caucasus, Russia	Zadov et al. (2011)		GOD53_775

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...