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:
Whatcom Co., Washington, USA

Oldest recorded age at locality: 170
Youngest recorded age at locality: 0.012

mindat Locality ID: 17552
mindat URL: http://www.mindat.org/loc-17552.html

Tectonic Settings:

Total number of sublocalities beneath "Whatcom Co., Washington, USA": 145
Total number of bottom-level sublocalities: 91

Number of Child Localities: 19
Child Localities:
Anderson Creek
Bear Mountain
Canyon Creek
Castle Peak
George Patterson Butte
Kulshan
Lake Samish
Meadow Point
Mount Baker District
North Cascades National Park
Orosino Creek
Quinn Claim
Ruby Creek
Sisters District
Slate Creek District
Sumas Mountain
Sumner Claim
Twin Sisters Mountain
Wells Creek

Latitude: 48°45'26"N
Longitude: 121°45'48"W
Decimal Degree (lat, lon): 48.757222222222,-121.76333333333

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.

Acanthite	Amphibole	Arsenopyrite	Baryte	Beryl	Calcite	Chalcopyrite	Chlorite	Clay	Clinozoisite
Copper	Epidote	Feldspar	Fluorite	Garnet	Malachite	Melonite	Mica	Molybdenite	Nickeline
None	Not in a structural group	Orpiment	Pectolite	Prehnite	Pyrite	Pyroxene	Quartz	Rocksalt	Scheelite
Sepiolite	Serpentine	Sphalerite	Spinel	Staurolite	Stibnite	Sulphur	Talc	Tetradymite	Tetrahedrite
Wollastonite	Zircon

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: Ag Al As Au Be Bi C Ca Cr Cu Fe H K Mg Mo Na O Pb Pt S Sb Si Te U Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Amphibole Arsenopyrite Baryte Beryl Calcite Chalcopyrite Chlorite Clay Clinozoisite
Copper Epidote Feldspar Fluorite Garnet Malachite Melonite Mica Molybdenite Nickeline
None Not in a structural group Orpiment Pectolite Prehnite Pyrite Pyroxene Quartz Rocksalt Scheelite
Sepiolite Serpentine Sphalerite Spinel Staurolite Stibnite Sulphur Talc Tetradymite Tetrahedrite
Wollastonite Zircon

61 IMA Minerals at location:

Acanthite ()*	Actinolite ()*	Albite ()*	Almandine ()*	Anglesite ()*
Anthophyllite ()*	Antigorite ()*	Arsenopyrite ()*	Azurite ()*	Beryl ()*
Bornite ()*	Calaverite ()*	Calcite ()*	Chalcocite ()*	Chalcopyrite ()*
Chamosite ()*	Chromite ()*	Chrysotile ()*	Clinochlore ()*	Clinozoisite ()*
Coffinite ()*	Cordierite ()*	Diopside ()*	Dolomite ()*	Enstatite ()*
Galena ()*	Gold ()*	Graphite ()*	Grossular ()*	Magnetite ()*
Malachite ()*	Massicot ()*	Molybdenite ()*	Molybdite ()*	Muscovite ()*
Orpiment ()*	Orthoclase ()*	Pectolite ()*	Platinum ()*	Powellite ()*
Prehnite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Realgar ()*
Sepiolite ()*	Siderite ()*	Silver ()*	Sphalerite ()*	Staurolite ()*
Stibnite ()*	Sulphur ()*	Sylvanite ()*	Talc ()*	Tellurobismuthite ()*
Tetrahedrite-(Zn) ()*	Tremolite ()*	Uraninite ()*	Uvarovite ()*	Wollastonite ()*
Xonotlite ()*

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
Acanthite ()*	Acanthite	Ag₂S			1	286342	2793
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	286300	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)			1	286394	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			1	286305	2353
Anglesite ()*	Baryte	Pb(SO₄)			1	286342	2734
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	170	0.276	3	286316,286318,286364	718
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	135	135	1	286276	708
Arsenopyrite ()*	Arsenopyrite	FeAsS	0.211	0.105	8	286269,286284,286341,286342,286347,286348,286349,286350	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			1	286283	5509
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			1	286259	4286
Bornite ()*	None	Cu₅FeS₄			1	286332	5516
Calaverite ()*	Melonite	AuTe₂			4	286290,286339,286349,286352	361
Calcite ()*	Calcite	Ca(CO₃)			9	286274,286281,286282,286284,286339,286341,286342,286348,286359	27770
Chalcocite ()*	None	Cu₂S			1	286283	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	0.211	0.105	13	286269,286272,286274,286281,286282,286283,286284,286293,286335,286339,286341,286342,286357	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	170	170	1	286316	577
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	170	0.012	49	286257,286262,286266,286272,286276,286296,286298,286309,286316,286318,286319,286320,286321,286322,286323,286324,286325,286326,286327,286328,286329,286360,286362,286363,286364,286365,286366,286369,286370,286372,286373,286374,286376,286377,286379,286381,286383,286384,286385,286386,286387,286389,286390,286391,286392,286393,286395,286396,286398	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	135	135	1	286276	951
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	170	170	4	286316,286318,286364,286372	1756
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	170	170	2	286318,286359	1025
Coffinite ()*	Zircon	U(SiO₄)·nH₂O			1	286260	566
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈			1	286260	1008
Diopside ()*	Pyroxene	CaMgSi₂O₆			3	286300,286359,286394	4135
Dolomite ()*	None	CaMg(CO₃)₂	0.211	0.105	1	286269	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	170	0.276	2	286358,286364	944
Galena ()*	Rocksalt	PbS	0.211	0.105	12	286269,286282,286283,286284,286339,286341,286342,286347,286348,286349,286350,286352	24243
Gold ()*	Copper	Au	5.3	1.117	22	286258,286280,286281,286286,286288,286290,286304,286307,286312,286332,286333,286335,286339,286341,286345,286347,286349,286350,286352,286353,286355,286357	30554
Graphite ()*	None	C			3	286254,286263,286264	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			1	286300	1544
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	170	135	5	286272,286276,286316,286318,286359	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			5	286283,286284,286333,286335,286349	12537
Massicot ()*	None	PbO			1	286283	202
Molybdenite ()*	Molybdenite	MoS₂			2	286293,286303	5800
Molybdite ()*	None	MoO₃			1	286293	140
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	286254	17380
Orpiment ()*	Orpiment	As₂S₃			1	286310	511
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			2	286259,286260	2349
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)			1	286359	363
Platinum ()*	Copper	Pt			1	286339	485
Powellite ()*	Scheelite	Ca(MoO₄)			1	286293	494
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	170	170	4	286316,286358,286359,286361	1898
Pyrite ()*	Pyrite	FeS₂	5.3	0.012	22	286269,286272,286274,286278,286280,286281,286282,286283,286284,286288,286290,286293,286332,286339,286341,286342,286347,286348,286349,286350,286352,286357	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			6	286281,286283,286284,286290,286341,286342	9056
Quartz ()*	Quartz	SiO₂	0.211	0.105	26	286259,286260,286269,286274,286280,286281,286282,286283,286284,286286,286290,286293,286303,286310,286332,286333,286335,286339,286341,286347,286348,286349,286350,286352,286355,286357	61156
Realgar ()*	None	AsS			1	286310	712
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O	170	0.276	1	286364	241
Siderite ()*	Calcite	Fe(CO₃)			1	286284	6417
Silver ()*	Copper	Ag	0.211	0.105	4	286269,286281,286333,286335	5186
Sphalerite ()*	Sphalerite	ZnS	0.211	0.105	11	286269,286282,286283,286284,286341,286342,286347,286348,286349,286350,286352	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	170	170	1	286316	978
Stibnite ()*	Stibnite	Sb₂S₃			1	286342	3418
Sulphur ()*	Sulphur	S	0.043	0.012	2	286270,286278	2045
Sylvanite ()*	Melonite	AgAuTe₄			1	286339	337
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			2	286300,286342	3337
Tellurobismuthite ()*	Tetradymite	Bi₂Te₃			2	286281,286290	276
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	0.211	0.105	1	286269	5317
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	286359	2562
Uraninite ()*	Fluorite	UO₂			1	286260	2718
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃			2	286364,286372	212
Wollastonite ()*	Wollastonite	CaSiO₃			1	286300	1247
Xonotlite ()*	None	Ca₆Si₆O₁₇(OH)₂			3	286358,286359,286361	109

25 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Source	Sample Num	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
NAVDAT-75167	0.374	0.288	0.33+0.044/-0.042		75167		253812	Meadow Point, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75455	0.043	0.012	0.03+0.013/-0.018		75455		253812	Meadow Point, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75456	0.043	0.012	0.03+0.013/-0.018		75456		253812	Meadow Point, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75445	0.043	0.012	0.03+0.013/-0.018		75445		68913	King Claim, Meadow Point, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75379	0.123	0.105	0.114±0.009	whole rock	75379		28933	Great Excelsior Mine (Lincoln Mine; President Mine; Excelsior Mine; Wells Creek Mine), Bearpaw Mountain, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75475	0.211	0.193	0.202±0.009	whole rock	75475		28933	Great Excelsior Mine (Lincoln Mine; President Mine; Excelsior Mine; Wells Creek Mine), Bearpaw Mountain, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
podchrome-00485	135	135	Jurassic-Cretaceous			Cr	28906	Breckenridge Creek Mine (Sumas Mountain Mine; Stein Mine), Kendall, Mount Baker District, Whatcom Co., Washington, USA	Breckenridge Creek	Moiser et al. (2012)	USGSSIR2012_5157
NAVDAT-75404	0.043	0.012	0.03+0.013/-0.018		75404		204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75405	0.043	0.012	0.03+0.013/-0.018		75405		204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75406	0.043	0.012	0.03+0.013/-0.018		75406		204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75507	0.043	0.012	0.03+0.013/-0.018		75507		204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75508	0.043	0.012	0.03+0.013/-0.018		75508		204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75509	0.043	0.012	0.03+0.013/-0.018		75509		204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75648	5.3	3.6	4.45±0.85		75648		28915	Fourth Of July Mine, Swift Creek, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-88041	1.193	1.117	1.155±0.038	plagioclase	88041		28915	Fourth Of July Mine, Swift Creek, Mount Baker District, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
podchrome-00483	170	170	Jurassic			Cr	18134	Ribbon Mine (Washington Chrome Mine), Green Creek, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA	Ribbon	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00481	170	170	Jurassic			Cr	28911	Danny Mine (Dannie Mine; Washington Chrome Mine), Nooksack River, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA	Danny	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00479	170	170	Jurassic			Cr	68896	Bumper Claim, Green Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA	Bumper	Moiser et al. (2012)	USGSSIR2012_5157
NAVDAT-75494	0.316	0.276	0.296±0.02	whole rock	75494		68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75495	0.513	0.477	0.495±0.018	whole rock	75495		68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75496	0.513	0.477	0.495±0.018	whole rock	75496		68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75498	0.513	0.477	0.495±0.018	whole rock	75498		68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
NAVDAT-75499	0.513	0.477	0.495±0.018	whole rock	75499		68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA		NAVDAT	NAVDAT
podchrome-00480	170	170	Jurassic			Cr	68898	Cultus Claim, Skookum Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA	Cultus	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00484	170	170	Jurassic			Cr	68928	Sisters Claim, Skookum Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA	Sisters	Moiser et al. (2012)	USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...