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:
Allt A'Mhuillin, Loch Borrolan, Assynt, Highland, Scotland, UK

Oldest recorded age at locality: 434
Youngest recorded age at locality: 386

mindat Locality ID: 5031
mindat URL: http://www.mindat.org/loc-5031.html

Tectonic Settings:

Total number of sublocalities beneath "Allt A'Mhuillin, Loch Borrolan, Assynt, Highland, Scotland, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 58°2'33"N
Longitude: 4°54'14"W
Decimal Degree (lat, lon): 58.0425,-4.9038888888889

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.

Cancrinite	Cancrinite-sodalite	Feldspar	Garnet	None

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 C Ca Fe H K Na O S Si

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

Structural Groups for minerals in this locality:
Cancrinite Cancrinite-sodalite Feldspar Garnet None

4 IMA Minerals at location:

Andradite ()*	Cancrinite ()*	Orthoclase ()*	Vishnevite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	434	386	1534
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	434	386	232
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	434	386	2349
Vishnevite ()*	Cancrinite-sodalite Cancrinite	Na₈(Al₆Si₆)O₂₄(SO₄)·2H₂O	434	386	21

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000861	MAGMATIC STYLE: Plug-like body, probably some 10s of metres across, but poor outcrop obscures extent. ASSOCIATED SILICATE ROCKS: Pyroxenite, nepheline syenite, pseudoleucite syenite (borolanite), syenite and quartz syenite; fenite.
Jen_0000862	MAGMATIC STYLE: Plug-like body, probably some 10s of metres across, but poor outcrop obscures extent. ASSOCIATED SILICATE ROCKS: Pyroxenite, nepheline syenite, pseudoleucite syenite (borolanite), syenite and quartz syenite; fenite.

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
	Jen_0000861	402	386	394±8	K-Ar						Yes				282070	Loch Borrolan, Assynt, Highland, Scotland, UK	Borralan	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
	Jen_0000862	434	426	430±4	U-Pb			zircon			Yes	Zircon			282070	Loch Borrolan, Assynt, Highland, Scotland, UK	Borralan	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...