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:
Van Stone Mine, Onion Creek, Stevens Co., Washington, USA

Oldest recorded age at locality: 541
Youngest recorded age at locality: 444

mindat Locality ID: 18282
mindat URL: http://www.mindat.org/loc-18282.html

Tectonic Settings:

Total number of sublocalities beneath "Van Stone Mine, Onion Creek, Stevens Co., Washington, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 48°45'38"N
Longitude: 117°45'23"W
Decimal Degree (lat, lon): 48.760555555556,-117.75638888889

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.

Amphibole	Baryte	Brucite	Clay	Nickeline	None	Palygorskite	Pyrite	Pyroxene	Quartz
Rocksalt	Sphalerite

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 Fe H Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Al Ba C Ca Fe H Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Amphibole Baryte Brucite Clay Nickeline None Palygorskite Pyrite Pyroxene Quartz
Rocksalt Sphalerite

11 IMA Minerals at location:

Baryte ()*	Brucite ()*	Diopside ()*	Dolomite ()*	Galena ()*
Palygorskite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Sphalerite ()*
Tremolite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	541	444	11547
Brucite ()*	Brucite	Mg(OH)₂	541	444	462
Diopside ()*	Pyroxene	CaMgSi₂O₆	541	444	4135
Dolomite ()*	None	CaMg(CO₃)₂	541	444	9895
Galena ()*	Rocksalt	PbS	541	444	24243
Palygorskite ()*	Palygorskite Clay	(Mg,Al)₂Si₄O₁₀(OH)·4H₂O	541	444	306
Pyrite ()*	Pyrite	FeS₂	541	444	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	541	444	9056
Quartz ()*	Quartz	SiO₂	541	444	61156
Sphalerite ()*	Sphalerite	ZnS	541	444	21482
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	541	444	2562

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	sedexmvt-00238	541	444	Cambro-Ordovician		host rock age									18282	Van Stone Mine, Onion Creek, Stevens Co., Washington, USA	Van Stone	Taylor et al. (2009)		USGSOFR2009_1297

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...