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:
Middle Fork Of The Snoqualmie River, Snoqualmie District, King Co., Washington, USA

mindat Locality ID: 16242
mindat URL: http://www.mindat.org/loc-16242.html

Tectonic Settings:

Total number of sublocalities beneath "Middle Fork Of The Snoqualmie River, Snoqualmie District, King Co., Washington, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Dutch Miller Claims
Middle Fork Claim

Latitude: 47°33'31"N
Longitude: 121°14'19"W
Decimal Degree (lat, lon): 47.558611111111,-121.23861111111

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.

Arsenopyrite	Calcite	Chalcopyrite	Copper	None	Pyrite	Quartz	Rocksalt	Sphalerite	Tetrahedrite

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: As Au C Cu Fe O Pb S Sb Si Zn

Elements from minerals reported directly at this locality: Au

Structural Groups for minerals in this locality:
Arsenopyrite Calcite Chalcopyrite Copper None Pyrite Quartz Rocksalt Sphalerite Tetrahedrite

10 IMA Minerals at location:

Arsenopyrite ()*	Bornite ()*	Chalcopyrite ()*	Galena ()*	Gold ()*
Pyrite ()*	Quartz ()*	Siderite ()*	Sphalerite ()*	Tetrahedrite-(Zn) ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	1	284566	9052
Bornite ()*	None	Cu₅FeS₄	1	284567	5516
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	284566,284567	27198
Galena ()*	Rocksalt	PbS	1	284566	24243
Gold ()*	Copper	Au	0		30554
Pyrite ()*	Pyrite	FeS₂	1	284566	39462
Quartz ()*	Quartz	SiO₂	2	284566,284567	61156
Siderite ()*	Calcite	Fe(CO₃)	1	284566	6417
Sphalerite ()*	Sphalerite	ZnS	1	284566	21482
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	1	284566	5317

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...