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:
Ben Lomond Mountain, Santa Cruz Mts, Santa Cruz Co., California, USA

mindat Locality ID: 211693
mindat URL: http://www.mindat.org/loc-211693.html

Tectonic Settings:

Total number of sublocalities beneath "Ben Lomond Mountain, Santa Cruz Mts, Santa Cruz Co., California, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Reggardio Creek
Spring Street Quarry (locality 270)
Unnamed Au Occurrence [1]
Unnamed Limestone Occurrence [1]
Unspecified Sillimanite Occurrences [1]

Latitude: 37°6'22"N
Longitude: 122°9'41"W
Decimal Degree (lat, lon): 37.106111111111,-122.16138888889

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.

Clay	Humite	Mica	None	Not in a structural group	Olivine	Sepiolite	Wollastonite

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 Ca F H K Mg O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Clay Humite Mica None Not in a structural group Olivine Sepiolite Wollastonite

6 IMA Minerals at location:

Chondrodite ()*	Forsterite ()*	Phlogopite ()*	Sepiolite ()*	Sillimanite ()*
Wollastonite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Chondrodite ()*	Humite	Mg₅(SiO₄)₂F₂	2	176345,176346	285
Forsterite ()*	Olivine	Mg₂(SiO₄)	1	176346	1188
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	176346	2273
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O	1	176346	241
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	176349	1516
Wollastonite ()*	Wollastonite	CaSiO₃	1	176345	1247

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...