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:
Briggs Creek District, Josephine Co., Oregon, USA

mindat Locality ID: 66152
mindat URL: http://www.mindat.org/loc-66152.html

Tectonic Settings:

Total number of sublocalities beneath "Briggs Creek District, Josephine Co., Oregon, USA": 9
Total number of bottom-level sublocalities: 9

Number of Child Localities: 9
Child Localities:
Elkhorn Creek Chrome Deposits (Briggs Creek Chrome; Rose City Chrome; Nigger Chrome; Elkhorn Creek Crome; Kerby No. 22)
Elkhorn Creek Manganese
Elkhorn Placer Mine
Gold Bond Placer (Red Dog Gold Placer)
Horse Mountain Chromite
Last Chance Occurrence
Lightning Ridge Occurrence
Swede Basin Prospect (Quicksilver Swede Basin)
Young Placers

Latitude: 42°23'11"N
Longitude: 123°43'50"W
Decimal Degree (lat, lon): 42.386388888889,-123.73055555556

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.

Copper	Garnet	None	Quartz	Rhodonite	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: Au Ca Cr Fe Hg Mn O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Copper Garnet None Quartz Rhodonite Spinel

6 IMA Minerals at location:

Andradite ()*	Chromite ()*	Cinnabar ()*	Gold ()*	Quartz ()*
Rhodonite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	259445	1534
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2	259444,259448	3902
Cinnabar ()*	None	HgS	4	259445,259449,259450,259451	2600
Gold ()*	Copper	Au	3	259446,259447,259452	30554
Quartz ()*	Quartz	SiO₂	1	259450	61156
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	2	259445,259450	969

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...