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:
Mendocino Co., California, USA

Oldest recorded age at locality: 164
Youngest recorded age at locality: 164

mindat Locality ID: 24265
mindat URL: http://www.mindat.org/loc-24265.html

Tectonic Settings:

Total number of sublocalities beneath "Mendocino Co., California, USA": 276
Total number of bottom-level sublocalities: 187

Number of Child Localities: 11
Child Localities:
Cloverdale Area
Coastal Range
Largo
Laughlin Range
Mayacmas Mts (Mayacamas Mts)
Pieta
Point Arena
Potter Valley
Redwood Valley
Unspecified Cr Occurrence (4)
York Creek Quarry

Latitude: 39°7'43"N
Longitude: 123°8'49"W
Decimal Degree (lat, lon): 39.128611111111,-123.14694444444

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.

Adelite	Allophane	Amorphous	Amphibole	Aragonite	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper
Corundum	Covellite	Diaspore	Edingtonite	Epidote	Feldspar	Gadolinite	Garnet	Lawsonite	Malachite
Mica	Nickeline	None	Not in a structural group	Pectolite	Prehnite	Pumpellyite	Pyrite	Pyrophyllite	Pyroxene
Quartz	Rutile	Smectite-vermiculite	Spinel	Stilpnomelane	Talc	Tetrahedrite	Titanite	Vesuvianite	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 Au B Ba C Ca Cr Cu F Fe H Hg Ir K Mg Mn Na Ni O Os Pt S Sb Si Ti Zn Zr

Elements from minerals reported directly at this locality: Al Ca Fe H Mg O Si

Structural Groups for minerals in this locality:
Adelite Allophane Amorphous Amphibole Aragonite Calcite Chalcopyrite Clay Clinozoisite Copper
Corundum Covellite Diaspore Edingtonite Epidote Feldspar Gadolinite Garnet Lawsonite Malachite
Mica Nickeline None Not in a structural group Pectolite Prehnite Pumpellyite Pyrite Pyrophyllite Pyroxene
Quartz Rutile Smectite-vermiculite Spinel Stilpnomelane Talc Tetrahedrite Titanite Vesuvianite Wollastonite
Zircon

84 IMA Minerals at location:

Actinolite ()*	Aegirine ()*	Albite ()*	Almandine ()*	Aragonite ()*
Azurite ()*	Bementite ()*	Bornite ()*	Calcite ()*	Calderite ()*
Chalcocite ()*	Chalcopyrite ()*	Chromite ()*	Chrysocolla ()*	Cinnabar ()*
Clinozoisite ()*	Copper ()*	Covellite ()*	Cuprite ()*	Datolite ()*
Deerite ()*	Diopside ()*	Edingtonite ()*	Enstatite ()*	Ferripyrophyllite ()*
Ferro-glaucophane ()*	Glaucophane ()*	Goethite ()*	Gold ()*	Graphite ()*
Grunerite ()*	Hematite ()*	Howieite ()*	Ilmenite ()*	Inesite ()*
Iridium ()*	Jadeite ()*	Kutnohorite ()*	Laumontite ()*	Lawsonite ()*
Lennilenapeite ()*	Magnesio-riebeckite ()*	Magnesiochromite ()*	Magnesite ()*	Magnetite ()*
Malachite ()*	Mcguinnessite ()*	Mercury ()*	Muscovite ()*	Neotocite ()*
Opal ()*	Osmium ()*	Pectolite ()*	Platinum ()*	Prehnite ()*
Pumpellyite-(Mg) ()*	Pyrite ()*	Pyrolusite ()*	Pyrrhotite ()*	Quartz ()*
Rhodochrosite ()*	Riebeckite ()*	Rosenhahnite ()*	Rutile ()*	Shirokshinite ()*
Siderite ()*	Silver ()*	Spessartine ()*	Stilpnomelane ()*	Talc ()*
Tenorite ()*	Tetrahedrite-(Zn) ()*	Titanite ()*	Tremolite ()*	Uvarovite ()*
Vermiculite ()*	Vesuvianite ()*	Vuagnatite ()*	Wollastonite ()*	Xonotlite ()*
Zaratite ()*	Zircon ()*	Zoisite ()*	Zussmanite ()*

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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			4	163457,163510,163598,163717	3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆			2	163541,163637	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)			2	163457,163541	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			1	163541	2353
Aragonite ()*	Aragonite	Ca(CO₃)			2	163457,163541	3250
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			3	163555,163689,163694	5509
Bementite ()*	Clay	Mn₇Si₆O₁₅(OH)₈			4	163469,163524,163707,163728	173
Bornite ()*	None	Cu₅FeS₄			1	163560	5516
Calcite ()*	Calcite	Ca(CO₃)			3	163457,163541,163625	27770
Calderite ()*	Garnet	Mn²⁺₃Fe³⁺₂(SiO₄)₃			1	163541	17
Chalcocite ()*	None	Cu₂S			2	163689,163694	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			4	163515,163541,163555,163694	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	164	164	19	163494,163503,163529,163534,163546,163550,163551,163552,163578,163601,163630,163633,163648,163655,163656,163667,163673,163690,163729	3902
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			2	163689,163694	3531
Cinnabar ()*	None	HgS			7	163464,163467,163499,163500,163509,163535,163683	2600
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			2	163541,163560	1025
Copper ()*	Copper	Cu			8	163465,163515,163531,163689,163693,163694,163695,163697	3846
Covellite ()*	Covellite	CuS			1	163694	4165
Cuprite ()*	Not in a structural group	Cu₂O			4	163555,163689,163694,163695	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)			1	163457	498
Deerite ()*	None	Fe²⁺₆Fe³⁺₃(Si₆O₁₇)O₃(OH)₅			4	163539,163541,163566,163637	27
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	163457	4135
Edingtonite ()*	Edingtonite	Ba(Si₃Al₂)O₁₀·4H₂O			1	163711	26
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			1	163565	944
Ferripyrophyllite ()*	Clay Pyrophyllite	Fe³⁺Si₂O₅(OH)			1	163458	9
Ferro-glaucophane ()*	Amphibole	Na₂(Fe²⁺₃Al₂)Si₈O₂₂(OH)₂			1	163561	26
Glaucophane ()*	Amphibole	Na₂(Mg₃Al₂)Si₈O₂₂(OH)₂			5	163457,163490,163541,163542,163560	286
Goethite ()*	Diaspore	FeO(OH)			1	163689	7437
Gold ()*	Copper	Au			4	163464,163467,163555,163683	30554
Graphite ()*	None	C			2	163541,163556	2812
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂			1	163541	223
Hematite ()*	Corundum	Fe₂O₃			1	163458	14640
Howieite ()*	None	Na(Fe²⁺,Fe³⁺,Al,Mg)₁₂(Si₆O₁₇)₂(O,OH)₁₀			4	163541,163560,163566,163637	16
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	163541	5433
Inesite ()*	None	Ca₂Mn²⁺₇Si₁₀O₂₈(OH)₂·5H₂O			3	163523,163524,163618	50
Iridium ()*	Copper	Ir			1	163467	162
Jadeite ()*	Pyroxene	NaAlSi₂O₆			4	163457,163541,163584,163635	154
Kutnohorite ()*	None	CaMn²⁺(CO₃)₂			1	163541	234
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			2	163457,163461	1271
Lawsonite ()*	Lawsonite	CaAl₂(Si₂O₇)(OH)₂·H₂O			6	163490,163541,163560,163561,163565,163573	121
Lennilenapeite ()*	Stilpnomelane Clay	K₇(Mg,Mn²⁺,Fe²⁺,Zn)₄₈(Si,Al)₇₂(O,OH)₂₁₆·16H₂O			1	163561	3
Magnesio-riebeckite ()*	Amphibole	Na₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂			1	163541	93
Magnesiochromite ()*	Spinel	MgCr₂O₄			3	163486,163687,163689	311
Magnesite ()*	Calcite	Mg(CO₃)			2	163668,163714	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	163541	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			4	163515,163555,163689,163694	12537
Mcguinnessite ()*	Malachite	CuMg(CO₃)(OH)₂			2	163689,163694	34
Mercury ()*	None	Hg			2	163509,163593	397
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			2	163541,163565	17380
Neotocite ()*	Allophane	(Mn,Fe)SiO₃·H₂O (?)			4	163523,163524,163712,163728	186
Opal ()*	Amorphous	SiO₂·nH₂O			1	163457	2994
Osmium ()*	None	Os			1	163482	169
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)			2	163457,163625	363
Platinum ()*	Copper	Pt			3	163467,163482,163682	485
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	164	164	0		1898
Pumpellyite-(Mg) ()*	Pumpellyite	Ca₂MgAl₂(Si₂O₇)(SiO₄)(OH)₂·H₂O			2	163456,163541	106
Pyrite ()*	Pyrite	FeS₂			2	163541,163555	39462
Pyrolusite ()*	Rutile	MnO₂			21	163495,163505,163512,163513,163518,163519,163562,163563,163569,163571,163576,163595,163599,163626,163629,163638,163659,163671,163697,163725,163726	3106
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	163603	9056
Quartz ()*	Quartz	SiO₂			11	163457,163458,163510,163515,163541,163561,163566,163599,163637,163716,163728	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)			17	163469,163484,163518,163523,163524,163576,163599,163618,163626,163628,163629,163641,163642,163671,163707,163727,163728	1711
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂			2	163541,163637	375
Rosenhahnite ()*	None	Ca₃Si₃O₈(OH)₂			1	163457	8
Rutile ()*	Rutile	TiO₂			3	163541,163542,163560	5614
Shirokshinite ()*	None	K(Mg₂Na)Si₄O₁₀F₂			1	163716	2
Siderite ()*	Calcite	Fe(CO₃)			1	163541	6417
Silver ()*	Copper	Ag			1	163555	5186
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			1	163541	1214
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O			2	163541,163566	456
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			2	163541,163663	3337
Tenorite ()*	None	CuO			1	163555	1101
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			1	163555	5317
Titanite ()*	Titanite	CaTi(SiO₄)O			2	163541,163565	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	163541	2562
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃			1	163667	212
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	164	164	0		652
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			3	163565,163689,163694	1395
Vuagnatite ()*	Adelite	CaAlSiO₄(OH)			3	163457,163689,163694	14
Wollastonite ()*	Wollastonite	CaSiO₃			1	163620	1247
Xonotlite ()*	None	Ca₆Si₆O₁₇(OH)₂			2	163457,163625	109
Zaratite ()*	Amorphous	Ni₃(CO₃)(OH)₄·4H₂O			1	163729	56
Zircon ()*	Zircon	Zr(SiO₄)			2	163464,163467	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			1	163565	1025
Zussmanite ()*	Clay	K(Fe,Mg,Mn)₁₃(Si,Al)₁₈O₄₂(OH)₁₄			3	163538,163541,163566	5

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
	podchrome-00329	164	164	Middle Jurassic (161-168 Ma)										Cr	82715	Graham Group, Red Mountain, Red Mountain District, Mayacmas Mts (Mayacamas Mts), Mendocino Co., California, USA	Graham Group	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL
FKM-15	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://www.rockptx.com/fkm-1-to-fkm-25/#FKM-15
FKM-141	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://www.rockptx.com/fkm-126-to-fkm-150/#FKM-141
FKM-147	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://www.rockptx.com/fkm-151-to-fkm-175/#FKM-147
R070393	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://rruff.info/R070393
R060031	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://rruff.info/R060031
R050448	Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA	https://rruff.info/R050448
R050397	Red Mountain, Red Mountain District, Mayacmas Mts (Mayacamas Mts), Mendocino Co., California, USA	https://rruff.info/R050397
R070082	Copper King Mine, Red Mountain, Red Mountain District, Mayacmas Mts (Mayacamas Mts), Mendocino Co., California, USA	https://rruff.info/R070082

All locality data graciously provided by mindat.org

All age data...