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:
Luc Yen, Yenbai Province (Yen Bai Province), Vietnam

Oldest recorded age at locality: 33.2
Youngest recorded age at locality: 30

mindat Locality ID: 6947
mindat URL: http://www.mindat.org/loc-6947.html

Tectonic Settings:

Total number of sublocalities beneath "Luc Yen, Yenbai Province (Yen Bai Province), Vietnam": 12
Total number of bottom-level sublocalities: 11

Number of Child Localities: 9
Child Localities:
An Phu (Anfu)
Bai Da Mine
Khai Trong Mine
Khoan Thong Mine
Lan-Mong Son Mine
Luc Yen Mine
Minh Tien Mine
Nuoc Ngap Mine
Tan Lap Mine

Latitude: 22°4'56"N
Longitude: 104°44'55"E
Decimal Degree (lat, lon): 22.082222222222,104.74861111111

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.

Amphibole	Calcite	Clay	Corundum	Danburite	Feldspar	Humite	Mica	Nickeline	None
Pyrite	Quartz	Rutile	Spinel	Titanite	Tourmaline	Zircon

Albite ()*	Anorthite ()*	Calcite ()*	Chondrodite ()*	Corundum ()*
Danburite ()*	Dravite ()*	Edenite ()*	Elbaite ()*	Graphite ()*
Humite ()*	Margarite ()*	Microcline ()*	Muscovite ()*	Orthoclase ()*
Paragonite ()*	Pargasite ()*	Phlogopite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Rossmanite ()*	Rutile ()*	Sadanagaite ()*	Sassolite ()*
Schorl ()*	Spinel ()*	Titanite ()*	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 B C Ca F Fe H K Li Mg Na O S Si Ti Zr

Elements from minerals reported directly at this locality: Al Ca Fe H K Mg Na O S Si

Structural Groups for minerals in this locality:
Amphibole Calcite Clay Corundum Danburite Feldspar Humite Mica Nickeline None
Pyrite Quartz Rutile Spinel Titanite Tourmaline Zircon

29 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	33.2	31.2	1	294894	8803
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	31.6	30	1	294891	1036
Calcite ()*	Calcite	Ca(CO₃)	31.6	30	5	294885,294886,294888,294891,294893	27770
Chondrodite ()*	Humite	Mg₅(SiO₄)₂F₂			1	294888	285
Corundum ()*	Corundum	Al₂O₃	33.2	30	8	294885,294886,294888,294889,294891,294893,294894,294895	1797
Danburite ()*	Danburite	CaB₂Si₂O₈	33.2	31.2	2	294886,294894	148
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	33.2	30	6	294885,294889,294891,294893,294894,294895	648
Edenite ()*	Amphibole	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂	33.2	30	6	294885,294889,294891,294893,294894,294895	160
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	33.2	31.2	1	294894	520
Graphite ()*	None	C	33.2	30	6	294885,294889,294891,294893,294894,294895	2812
Humite ()*	Humite	Mg₇(SiO₄)₃F₂	33.2	31.2	1	294894	80
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂	33.2	30	6	294885,294889,294891,294893,294894,294895	168
Microcline ()*	Feldspar	K(AlSi₃O₈)	33.2	31.2	3	294885,294894,294896	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	33.2	31.2	2	294887,294894	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	33.2	30	0		2349
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂	33.2	30	0		247
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂			1	294887	313
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	33.2	30	6	294885,294889,294891,294893,294894,294895	2273
Pyrite ()*	Pyrite	FeS₂	33.2	30	6	294885,294889,294891,294893,294894,294895	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	33.2	30	0		9056
Quartz ()*	Quartz	SiO₂	33.2	31.2	2	294894,294896	61156
Rossmanite ()*	Tourmaline	(Al₂Li)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	33.2	31.2	1	294894	37
Rutile ()*	Rutile	TiO₂	33.2	30	6	294885,294889,294891,294893,294894,294895	5614
Sadanagaite ()*	Amphibole	NaCa₂(Mg₃Al₂)(Si₅Al₃)O₂₂(OH)₂	33.2	30	0		6
Sassolite ()*	None	B(OH)₃			1	294886	31
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			1	294896	2705
Spinel ()*	Spinel	MgAl₂O₄	33.2	30	9	294885,294886,294887,294888,294889,294891,294893,294894,294895	1934
Titanite ()*	Titanite	CaTi(SiO₄)O	31.6	30	1	294891	4899
Zircon ()*	Zircon	Zr(SiO₄)	31.6	30	1	294891	5251

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Alexandra-0359	31.8	30	30.9 ± 0.9	40Ar/39A	Age of marble	phlogopite	BDL4	Phlogopite	193087	Bai Da Mine, Luc Yen, Yenbai Province (Yen Bai Province), Vietnam	Bai Da Lan	Garnier et al. (2002)	10.1016/S0009-2541(02)00063-3	CG188_33
Alexandra-0361	31.6	30	30.8 ± 0.8	40Ar/39A	Age of marble	muscovite	KT3b	Muscovite	193089	Khoan Thong Mine, Luc Yen, Yenbai Province (Yen Bai Province), Vietnam	Khoan Thong	Garnier et al. (2002)	10.1016/S0009-2541(02)00063-3	CG188_33
Alexandra-0360	33.2	31.2	32.2 ± 1.0	40Ar/39A	Age of marble	phlogopite	MTH3	Phlogopite	69170	Minh Tien Mine, Luc Yen, Yenbai Province (Yen Bai Province), Vietnam	Minh Tien	Garnier et al. (2002)	10.1016/S0009-2541(02)00063-3	CG188_33

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...