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:
Griffith Park, Hollywood, Hollywood Hills, Los Angeles, Santa Monica Mts, Los Angeles Co., California, USA

mindat Locality ID: 30101
mindat URL: http://www.mindat.org/loc-30101.html

Tectonic Settings:

Total number of sublocalities beneath "Griffith Park, Hollywood, Hollywood Hills, Los Angeles, Santa Monica Mts, Los Angeles Co., California, USA": 5
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Griffith Observatory
South Riverside Drive
Unnamed Calcite Occurrence

Latitude: 34°7'38"N
Longitude: 118°17'58"W
Decimal Degree (lat, lon): 34.127222222222,-118.29944444444

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	Natrolite	None	Not in a structural group	Prehnite	Quartz	Smectite-vermiculite	Thomsonite

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: Al Ca Fe H Mg Na O Si

Structural Groups for minerals in this locality:
Analcime Calcite Clay Natrolite None Not in a structural group Prehnite Quartz Smectite-vermiculite Thomsonite

8 IMA Minerals at location:

Analcime ()*	Calcite ()*	Laumontite ()*	Natrolite ()*	Prehnite ()*
Quartz ()*	Saponite ()*	Thomsonite-Ca ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	0		1627
Calcite ()*	Calcite	Ca(CO₃)	1	161775	27770
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	0		1271
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	0		1236
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	0		1898
Quartz ()*	Quartz	SiO₂	1	161773	61156
Saponite ()*	Clay Smectite-vermiculite	(Ca,Na)_0.3(Mg,Fe)₃(Si,Al)₄O₁₀(OH)₂·4H₂O	0		301
Thomsonite-Ca ()*	Thomsonite	NaCa₂(Al₅Si₅)O₂₀·6H₂O	0		452

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...