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:
Fort Point, San Francisco, San Francisco Co., California, USA

mindat Locality ID: 131293
mindat URL: http://www.mindat.org/loc-131293.html

Tectonic Settings:

Total number of sublocalities beneath "Fort Point, San Francisco, San Francisco Co., California, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Marshall Beach

Latitude: 37°48'38"N
Longitude: 122°28'35"W
Decimal Degree (lat, lon): 37.810555555556,-122.47638888889

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.

Aragonite	Baryte	Calcite	Clay	Gadolinite	Gyrolite	Hydrotalcite	None	Pectolite	Quartz
Serpentine	Wollastonite

Antigorite ()*	Aragonite ()*	Baryte ()*	Calcite ()*	Coalingite ()*
Datolite ()*	Gyrolite ()*	Hydromagnesite ()*	Magnesite ()*	Nesquehonite ()*
Pectolite ()*	Pyroaurite ()*	Quartz ()*	Wollastonite ()*	Xonotlite ()*

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 Ba C Ca Fe H Mg Na O S Si

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

Structural Groups for minerals in this locality:
Aragonite Baryte Calcite Clay Gadolinite Gyrolite Hydrotalcite None Pectolite Quartz
Serpentine Wollastonite

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	0		708
Aragonite ()*	Aragonite	Ca(CO₃)	0		3250
Baryte ()*	Baryte	Ba(SO₄)	0		11547
Calcite ()*	Calcite	Ca(CO₃)	0		27770
Coalingite ()*	Hydrotalcite	Mg₁₀Fe³⁺₂(CO₃)(OH)₂₄·2H₂O	0		27
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)	0		498
Gyrolite ()*	Gyrolite	NaCa₁₆(Si₂₃Al)O₆₀(OH)₈·14H₂O	0		142
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O	1	175254	341
Magnesite ()*	Calcite	Mg(CO₃)	0		1487
Nesquehonite ()*	None	Mg(CO₃)·3H₂O	0		80
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)	0		363
Pyroaurite ()*	Hydrotalcite	Mg₆Fe³⁺₂(CO₃)(OH)₁₆·4H₂O	0		89
Quartz ()*	Quartz	SiO₂	0		61156
Wollastonite ()*	Wollastonite	CaSiO₃	0		1247
Xonotlite ()*	None	Ca₆Si₆O₁₇(OH)₂	1	175254	109

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...