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:
Skamania Co., Washington, USA

Oldest recorded age at locality: 36
Youngest recorded age at locality: 16

mindat Locality ID: 17547
mindat URL: http://www.mindat.org/loc-17547.html

Tectonic Settings:

Total number of sublocalities beneath "Skamania Co., Washington, USA": 101
Total number of bottom-level sublocalities: 81

Number of Child Localities: 18
Child Localities:
Bald Mountain
Bear Creek
Dog Mountain
Green River
Lewis River
Mcc Nos. 1 And 2 Claims (Mcc Claims 1 And 2; Meyer-Clark & Clark; Mcc Lode)
McCoy Peak
Mccuiston B & M Lode (Mccuiston G And M Claims)
Mccuiston C & M Lode (Mccuiston C And M Claims)
Mt St Helens District
Rainbow Prospect
Randle
Rapid River
Silver Queen Lode (Silver Queen Claim Group)
Stevenson
Washougal District
Wind River
Wind River Mine

Latitude: 46°5'2"N
Longitude: 121°52'30"W
Decimal Degree (lat, lon): 46.083888888889,-121.875

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	Analcime	Andalusite	Apatite	Arsenopyrite	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper
Corundum	Covellite	Descloizite	Diamond	Diaspore	Dumortierite	Epidote	Fluorite	Gadolinite	Kaolinite
Malachite	Mica	Molybdenite	Mordenite	Natrolite	Nickeline	None	Not in a structural group	Pyrite	Quartz
Rocksalt	Scheelite	Sphalerite	Spinel	Talc	Tourmaline

Analcime ()*	Andalusite ()*	Arsenopyrite ()*	Azurite ()*	Bornite ()*
Calcite ()*	Celadonite ()*	Chalcocite ()*	Chalcopyrite ()*	Chrysocolla ()*
Copper ()*	Covellite ()*	Cuprite ()*	Datolite ()*	Diamond ()*
Dumortierite ()*	Epidote ()*	Epistilbite ()*	Fluorite ()*	Galena ()*
Goethite ()*	Gold ()*	Hematite ()*	Kaolinite ()*	Laumontite ()*
Magnetite ()*	Malachite ()*	Molybdenite ()*	Mordenite ()*	Mottramite ()*
Muscovite ()*	Pyrite ()*	Pyromorphite ()*	Pyrrhotite ()*	Quartz ()*
Realgar ()*	Schorl ()*	Scolecite ()*	Siderite ()*	Sillimanite ()*
Sphalerite ()*	Talc ()*	Wulfenite ()*

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 As Au B C Ca Cl Cu F Fe H K Mg Mo Na O P Pb S Si V Zn

Elements from minerals reported directly at this locality: C

Structural Groups for minerals in this locality:
Allophane Analcime Andalusite Apatite Arsenopyrite Calcite Chalcopyrite Clay Clinozoisite Copper
Corundum Covellite Descloizite Diamond Diaspore Dumortierite Epidote Fluorite Gadolinite Kaolinite
Malachite Mica Molybdenite Mordenite Natrolite Nickeline None Not in a structural group Pyrite Quartz
Rocksalt Scheelite Sphalerite Spinel Talc Tourmaline

43 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	36	28	1	285589	1627
Andalusite ()*	Andalusite	Al₂SiO₅			1	285602	1310
Arsenopyrite ()*	Arsenopyrite	FeAsS	17	16	4	285532,285537,285544,285557	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	17	16	4	285544,285601,285603,285604	5509
Bornite ()*	None	Cu₅FeS₄	21	16	10	285532,285535,285544,285591,285593,285595,285600,285601,285603,285604	5516
Calcite ()*	Calcite	Ca(CO₃)	36	16	11	285511,285516,285517,285522,285544,285571,285589,285593,285600,285605,285607	27770
Celadonite ()*	Mica Clay	KMgFe³⁺Si₄O₁₀(OH)₂			1	285582	309
Chalcocite ()*	None	Cu₂S	21	16	6	285522,285532,285544,285593,285600,285603	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	21	16	30	285522,285532,285533,285535,285536,285537,285538,285543,285544,285545,285547,285549,285554,285556,285557,285558,285559,285560,285561,285572,285573,285591,285593,285595,285598,285600,285601,285603,285604,285605	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	17	16	3	285544,285600,285603	3531
Copper ()*	Copper	Cu	17	16	2	285544,285557	3846
Covellite ()*	Covellite	CuS	17	16	2	285544,285603	4165
Cuprite ()*	Not in a structural group	Cu₂O			1	285601	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)			2	285514,285517	498
Diamond ()*	Diamond	C	36	16	0		697
Dumortierite ()*	Dumortierite	AlAl₆BSi₃O₁₈			1	285602	231
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	17	16	2	285544,285595	8173
Epistilbite ()*	Mordenite	Ca₃[Si₁₈Al₆O₄₈]·16H₂O			1	285517	138
Fluorite ()*	Fluorite	CaF₂			2	285514,285517	9617
Galena ()*	Rocksalt	PbS	21	16	17	285522,285535,285536,285537,285538,285541,285544,285545,285549,285557,285559,285571,285572,285593,285597,285598,285605	24243
Goethite ()*	Diaspore	FeO(OH)	22	16	1	285544	7437
Gold ()*	Copper	Au			12	285520,285522,285523,285524,285525,285526,285535,285545,285549,285581,285595,285607	30554
Hematite ()*	Corundum	Fe₂O₃	22	16	2	285544,285601	14640
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	17	16	2	285544,285595	5591
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			1	285588	1271
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	21	16	3	285544,285593,285595	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	17	16	11	285532,285544,285556,285573,285591,285595,285600,285601,285603,285604,285607	12537
Molybdenite ()*	Molybdenite	MoS₂	21	16	4	285522,285544,285593,285595	5800
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O	36	28	5	285510,285516,285517,285584,285589	405
Mottramite ()*	Descloizite	PbCu(VO₄)(OH)			1	285600	362
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	22	16	6	285532,285544,285593,285595,285599,285602	17380
Pyrite ()*	Pyrite	FeS₂	21	16	33	285517,285522,285532,285533,285535,285537,285541,285543,285544,285545,285546,285547,285549,285553,285554,285556,285557,285558,285570,285571,285572,285573,285580,285581,285591,285593,285595,285598,285600,285601,285603,285605,285607	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl			1	285600	1725
Pyrrhotite ()*	Nickeline	Fe₇S₈			3	285558,285572,285595	9056
Quartz ()*	Quartz	SiO₂	36	16	36	285511,285516,285517,285522,285525,285532,285535,285537,285543,285544,285545,285546,285549,285556,285557,285558,285560,285561,285571,285572,285573,285581,285584,285585,285589,285591,285593,285595,285597,285600,285601,285602,285603,285604,285605,285607	61156
Realgar ()*	None	AsS			1	285607	712
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			1	285555	2705
Scolecite ()*	Natrolite	Ca(Si₃Al₂)O₁₀·3H₂O			1	285510	390
Siderite ()*	Calcite	Fe(CO₃)			1	285605	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅			2	285599,285602	1516
Sphalerite ()*	Sphalerite	ZnS	21	16	13	285522,285536,285537,285544,285545,285557,285571,285572,285573,285593,285598,285601,285605	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			3	285532,285549,285572	3337
Wulfenite ()*	Scheelite	PbMoO₄			1	285600	1655

11 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Source	Sample Num	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 ID
NAVDAT-10982	22	21	21+1/-0		10982			25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-10983	22	21	21+1/-0		10983			25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-10984	22	21	21+1/-0		10984			25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-10985	22	21	21+1/-0		10985			25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-14610	17.8	16.8	17.3±0.5	whole rock	14610			25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-14611	17.4	16.4	16.9±0.5	whole rock	14611			25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
PorphCu-00074	17	16	17–16			Arsenopyrite, Bornite, Chalcopyrite, Chrysocolla, Copper, Covellite, Epidote, Galena, Kaolinite, Magnetite, Molybdenite, Pyrite, Sphalerite	Cu	25904	Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA	Margaret	Singer et al. (2008)	USGSOFR2008_1155
NAVDAT-5120	36	28	32±4		5120			18264	Rock Creek, Stevenson, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-5121	36	28	32±4		5121			18264	Rock Creek, Stevenson, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-5965	21	18	19+2/-1		5965			25903	Black Jack Mine, Gumboot Mountain, Washougal District, Skamania Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-5967	21	18	19+2/-1		5967			25903	Black Jack Mine, Gumboot Mountain, Washougal District, Skamania Co., Washington, USA		NAVDAT	NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...