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:
Mt Fansipan, Phong Tho District, Lai Chau Province, Vietnam

Oldest recorded age at locality: 331
Youngest recorded age at locality: 30

mindat Locality ID: 205454
mindat URL: http://www.mindat.org/loc-205454.html

Tectonic Settings:

Total number of sublocalities beneath "Mt Fansipan, Phong Tho District, Lai Chau Province, Vietnam": 4
Total number of bottom-level sublocalities: 3

Number of Child Localities: 2
Child Localities:
Nâm Nâm Xe REE Deposit
Nâm Xe REE Deposit

Latitude: 22°32'0"N
Longitude: 103°27'0"E
Decimal Degree (lat, lon): 22.533333333333,103.45

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.

Apatite	Aragonite	Baryte	Bastnäsite	Burbankite	Calcite	Carbocernaite	Clay	Fluorite	Lanthanite
Mica	Molybdenite	None	Parisite	Pyrite	Quartz	Rocksalt	Smectite-vermiculite	Sphalerite	Spinel

Ankerite ()*	Baryte ()*	Bastnäsite-(Ce) ()*	Burbankite ()*	Calcite ()*
Carbocernaite ()*	Celestine ()*	Dolomite ()*	Fluorapatite ()*	Fluorbritholite-(Ce) ()*
Fluorite ()*	Galena ()*	Lanthanite-(Ce) ()*	Magnetite ()*	Molybdenite ()*
Montmorillonite ()*	Parisite-(Ce) ()*	Phlogopite ()*	Pyrite ()*	Quartz ()*
Siderite ()*	Sphalerite ()*	Strontianite ()*	Synchysite-(Ce) ()*

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 Ba C Ca Ce F Fe H K La Mg Mo Na O P Pb S Si Sr Zn

Elements from minerals reported directly at this locality: C Ca Ce La Na O Sr

Structural Groups for minerals in this locality:
Apatite Aragonite Baryte Bastnäsite Burbankite Calcite Carbocernaite Clay Fluorite Lanthanite
Mica Molybdenite None Parisite Pyrite Quartz Rocksalt Smectite-vermiculite Sphalerite Spinel

24 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
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	331	30	2	294771,294772	3092
Baryte ()*	Baryte	Ba(SO₄)	331	30	1	294772	11547
Bastnäsite-(Ce) ()*	Bastnäsite	Ce(CO₃)F	331	30	1	294772	304
Burbankite ()*	Burbankite	(Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅	331	30	1	294772	52
Calcite ()*	Calcite	Ca(CO₃)	331	30	1	294772	27770
Carbocernaite ()*	Carbocernaite	(Sr,Ce,La)(Ca,Na)(CO₃)₂	331	30	0		24
Celestine ()*	Baryte	Sr(SO₄)	331	30	1	294772	1252
Dolomite ()*	None	CaMg(CO₃)₂	331	30	1	294772	9895
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	331	30	1	294772	2740
Fluorbritholite-(Ce) ()*	Apatite	(Ce,Ca)₅(SiO₄)₃F	331	30	1	294772	19
Fluorite ()*	Fluorite	CaF₂	331	30	2	294771,294772	9617
Galena ()*	Rocksalt	PbS	331	30	1	294772	24243
Lanthanite-(Ce) ()*	Lanthanite	Ce₂(CO₃)₃·8H₂O	331	30	1	294772	16
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	331	30	1	294772	14899
Molybdenite ()*	Molybdenite	MoS₂	331	30	1	294772	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	331	30	1	294772	1508
Parisite-(Ce) ()*	Parisite	CaCe₂(CO₃)₃F₂	331	30	2	294771,294772	112
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	331	30	1	294772	2273
Pyrite ()*	Pyrite	FeS₂	331	30	1	294772	39462
Quartz ()*	Quartz	SiO₂	331	30	1	294772	61156
Siderite ()*	Calcite	Fe(CO₃)	331	30	1	294772	6417
Sphalerite ()*	Sphalerite	ZnS	331	30	1	294772	21482
Strontianite ()*	Aragonite	Sr(CO₃)	331	30	1	294772	589
Synchysite-(Ce) ()*	None	CaCe(CO₃)₂F	331	30	2	294771,294772	232

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0001163	The Phong Tho district covers 3,500 km2 across which are scattered the four carbonatite localities of Southern NamXe, Ban Mo, Northern NamXe and Then Thau-Ban Lang. MAGMATIC STYLE: Includes a volcano with extrusive carbonatites and irregular intrusions, dykes and veins. ASSOCIATED SILICATE ROCKS: Basaltic trachyandesite, trachyrhyolite, trachyte, leucitophyre, peralkaline syenites and granites; lamproites and lamprophyres.
Jen_0001164	The Phong Tho district covers 3,500 km2 across which are scattered the four carbonatite localities of Southern NamXe, Ban Mo, Northern NamXe and Then Thau-Ban Lang. MAGMATIC STYLE: Includes a volcano with extrusive carbonatites and irregular intrusions, dykes and veins. ASSOCIATED SILICATE ROCKS: Basaltic trachyandesite, trachyrhyolite, trachyte, leucitophyre, peralkaline syenites and granites; lamproites and lamprophyres.

Age ID

Locality Notes

Jen_0001163

The Phong Tho district covers 3,500 km2 across which are scattered the four carbonatite localities of Southern NamXe, Ban Mo, Northern NamXe and Then Thau-Ban Lang. MAGMATIC STYLE: Includes a volcano with extrusive carbonatites and irregular intrusions, dykes and veins. ASSOCIATED SILICATE ROCKS: Basaltic trachyandesite, trachyrhyolite, trachyte, leucitophyre, peralkaline syenites and granites; lamproites and lamprophyres.

Jen_0001164

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Jen_0001163	30	30	30	Rb-Sr	phlogopite, k-feldspar	27053	Nâm Xe REE Deposit, Mt Fansipan, Phong Tho District, Lai Chau Province, Vietnam	Phong Tho	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0001164	47.5	40.5	44±3.5	Rb-Sr	phlogopite, k-feldspar	27053	Nâm Xe REE Deposit, Mt Fansipan, Phong Tho District, Lai Chau Province, Vietnam	Phong Tho	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
ree-00770	331	252	Middle Carboniferous - Permian			27053	Nâm Xe REE Deposit, Mt Fansipan, Phong Tho District, Lai Chau Province, Vietnam	Nam Xe North (Mau Xe North)	Orris and Grauch (2002)		USGSOFR02_189
ree-00771	299	252	Late Permian			27053	Nâm Xe REE Deposit, Mt Fansipan, Phong Tho District, Lai Chau Province, Vietnam	Nam Xe South (Mau Xe North)	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...