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:
Porthoustock, St Keverne, Cornwall, England, UK

mindat Locality ID: 37281
mindat URL: http://www.mindat.org/loc-37281.html

Tectonic Settings:

Total number of sublocalities beneath "Porthoustock, St Keverne, Cornwall, England, UK": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Manacle Point
Porthkerris Quarry
West Of England Quarry

Latitude: 50°3'19"N
Longitude: 5°3'45"W
Decimal Degree (lat, lon): 50.055277777778,-5.0625

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.

Analcime	Calcite	Clay	Clinozoisite	Epidote	None	Pectolite	Prehnite	Talc

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 Mg Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Calcite Clay Clinozoisite Epidote None Pectolite Prehnite Talc

6 IMA Minerals at location:

Analcime ()*	Calcite ()*	Epidote ()*	Pectolite ()*	Prehnite ()*
Talc ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	2	118889,118890	1627
Calcite ()*	Calcite	Ca(CO₃)	1	118890	27770
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	118889	8173
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)	1	118890	363
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	1	118890	1898
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	118888	3337

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...