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:
Three Forks, Coastal Range, Trinity Co., California, USA

mindat Locality ID: 241874
mindat URL: http://www.mindat.org/loc-241874.html

Tectonic Settings:

Total number of sublocalities beneath "Three Forks, Coastal Range, Trinity Co., California, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Blue Jay Mine (Blue Jay Claim; Blue Bird Mine; McKnight; McKnight)
Hart And Bear Deposits (Bear Claim; Hart Claim)
Lucky Sunday And Billy Sunday Claims (Lucky Sunday Claim; Billy Sunday Claim)
North Fork Deposit (Keating)
Rainy Day Claim (Rainy Day Property)

Latitude: 40°8'26"N
Longitude: 123°13'35"W
Decimal Degree (lat, lon): 40.140555555556,-123.22638888889

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.

Allophane	Baryte	Braunite	Calcite	Clay	Copper	Malachite	None	Not in a structural group	Quartz
Ramsdellite	Rhodonite	Rutile	Spinel

Baryte ()*	Bementite ()*	Birnessite ()*	Braunite ()*	Chalcocite ()*
Copper ()*	Cuprite ()*	Hausmannite ()*	Inesite ()*	Malachite ()*
Neotocite ()*	Nsutite ()*	Pyrolusite ()*	Quartz ()*	Rhodochrosite ()*
Rhodonite ()*	Todorokite ()*	Vernadite ()*

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 Ba C Ca Cu Fe H K Mg Mn Na O S Si Sr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Baryte Braunite Calcite Clay Copper Malachite None Not in a structural group Quartz
Ramsdellite Rhodonite Rutile Spinel

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	1	180934	11547
Bementite ()*	Clay	Mn₇Si₆O₁₅(OH)₈	2	180934,180938	173
Birnessite ()*	None	(Na,Ca,K)_0.6(Mn⁴⁺,Mn³⁺)₂O₄·1.5H₂O	1	180934	178
Braunite ()*	Braunite	Mn²⁺Mn³⁺₆O₈(SiO₄)	1	180934	483
Chalcocite ()*	None	Cu₂S	1	180934	5707
Copper ()*	Copper	Cu	1	180934	3846
Cuprite ()*	Not in a structural group	Cu₂O	1	180934	2970
Hausmannite ()*	Spinel	Mn²⁺Mn³⁺₂O₄	1	180934	350
Inesite ()*	None	Ca₂Mn²⁺₇Si₁₀O₂₈(OH)₂·5H₂O	1	180934	50
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	180934	12537
Neotocite ()*	Allophane	(Mn,Fe)SiO₃·H₂O (?)	1	180934	186
Nsutite ()*	Ramsdellite	Mn²⁺_xMn⁴⁺_1-xO_2-2x(OH)_2x	1	180934	121
Pyrolusite ()*	Rutile	MnO₂	2	180934,180936	3106
Quartz ()*	Quartz	SiO₂	2	180934,180936	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	3	180934,180936,180938	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	2	180934,180938	969
Todorokite ()*	None	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂·3-4H₂O	1	180934	433
Vernadite ()*	None	(Mn,Fe,Ca,Na)(O,OH)₂·nH₂O	1	180934	65

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...