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:
Yreka, Siskiyou Co., California, USA

mindat Locality ID: 217439
mindat URL: http://www.mindat.org/loc-217439.html

Tectonic Settings:

Total number of sublocalities beneath "Yreka, Siskiyou Co., California, USA": 30
Total number of bottom-level sublocalities: 28

Number of Child Localities: 19
Child Localities:
Blue Gravel Placer (Black Lead Placer)
Butcher Hill Occurrence (Shebley)
Collateral Mine
Cottonwood-Fort Jones-Yreka
Darling Ledge Mine
El Oro Dredge Mine
El Oro No. 3 Dredge Mine
Greenhorn Reservoir
Jeff Gatewood Property
King Solomon Mine
Mint Mine
Morning Star & Sunset No. 2 Placer Mine
Oberlin Hill Mine
Osgood Mine (Lucky Strike Mine)
Ottrelite Schist Occurrence
Southeast Of Yreka
Unnamed Au Occurrence [157]
Unnamed Cr Occurrence [21]
Whiskey Lakes Ranch Quarry

Latitude: 41°43'42"N
Longitude: 122°39'15"W
Decimal Degree (lat, lon): 41.728333333333,-122.65416666667

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.

Chlorite	Chloritoid	Clay	Clinozoisite	Copper	Epidote	Garnet	None	Pyroxene	Quartz
Spinel

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 Au Ca Cr Fe H Mg Mn O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Chlorite Chloritoid Clay Clinozoisite Copper Epidote Garnet None Pyroxene Quartz
Spinel

8 IMA Minerals at location:

Chromite ()*	Clinochlore ()*	Diopside ()*	Epidote ()*	Gold ()*
Ottrélite ()*	Quartz ()*	Uvarovite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2	180124,180136	3902
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	2	180149,180151	1756
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	180151	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	180142	8173
Gold ()*	Copper	Au	10	180125,180128,180129,180131,180133,180134,180135,180137,180143,180144	30554
Ottrélite ()*	Chloritoid	Mn²⁺Al₂O(SiO₄)(OH)₂	1	180147	59
Quartz ()*	Quartz	SiO₂	1	180143	61156
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃	1	180149	212

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...