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:
West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA

mindat Locality ID: 209463
mindat URL: http://www.mindat.org/loc-209463.html

Tectonic Settings:

Total number of sublocalities beneath "West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA": 112
Total number of bottom-level sublocalities: 94

Number of Child Localities: 10
Child Localities:
Black Oaks
Castle Rock Springs Area
Cloverdale
Holst-Weeks Prospect (Holst-Weeks Deposit)
Hood Mountain Regional Park
Los Alamos Canyon
Mahnke Peak
Mark West Springs
The Geysers
Yellowjacket Mine

Latitude: 38°39'47"N
Longitude: 122°44'13"W
Decimal Degree (lat, lon): 38.663055555556,-122.73694444444

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	Alum	Alunite	Amorphous	Amphibole	Analcime	Arcanite	Baryte	Calcite
Chalcanthite	Chalcopyrite	Clay	Clinozoisite	Epidote	Epsomite	Gadolinite	Gypsum	Halotrichite	Kaolinite
Lawsonite	Melanterite	Millerite	None	Not in a structural group	Pectolite	Picromerite	Prehnite	Pyrite	Pyroxene
Quartz	Rutile	Serpentine	Sphalerite	Spinel	Stibnite	Stilbite	Sulphur	Talc	Titanite
Tridymite	Voltaite

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 B Ba C Ca Cl Cr Cu Fe H Hg K Mg Mn N Na Ni O S Sb Se Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Adelite Allophane Alum Alunite Amorphous Amphibole Analcime Arcanite Baryte Calcite
Chalcanthite Chalcopyrite Clay Clinozoisite Epidote Epsomite Gadolinite Gypsum Halotrichite Kaolinite
Lawsonite Melanterite Millerite None Not in a structural group Pectolite Picromerite Prehnite Pyrite Pyroxene
Quartz Rutile Serpentine Sphalerite Spinel Stibnite Stilbite Sulphur Talc Titanite
Tridymite Voltaite

62 IMA Minerals at location:

Aegirine ()*	Alum-(K) ()*	Alunite ()*	Alunogen ()*	Ammonioalunite ()*
Ammoniojarosite ()*	Azurite ()*	Baryte ()*	Boussingaultite ()*	Calcite ()*
Chalcopyrite ()*	Chromite ()*	Cinnabar ()*	Datolite ()*	Dolomite ()*
Edgarbaileyite ()*	Eglestonite ()*	Epidote ()*	Epsomite ()*	Gypsum ()*
Halotrichite ()*	Hisingerite ()*	Hydromagnesite ()*	Idrialite ()*	Jadeite ()*
Kalinite ()*	Kaolinite ()*	Lawsonite ()*	Letovicite ()*	Magnesite ()*
Mascagnite ()*	Melanterite ()*	Mercury ()*	Metacinnabar ()*	Metastibnite ()*
Millerite ()*	Montroydite ()*	Neotocite ()*	Omphacite ()*	Opal ()*
Pecoraite ()*	Pectolite ()*	Pentahydrite ()*	Pickeringite ()*	Prehnite ()*
Pyrite ()*	Pyrolusite ()*	Quartz ()*	Rhodochrosite ()*	Riebeckite ()*
Sassolite ()*	Stellerite ()*	Sulphur ()*	Talc ()*	Tiemannite ()*
Titanite ()*	Tremolite ()*	Tridymite ()*	Tschermigite ()*	Voltaite ()*
Vuagnatite ()*	Wairakite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	1	180468	1022
Alum-(K) ()*	Alum	KAl(SO₄)₂·12H₂O	1	180479	92
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	1	180479	966
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	1	180479	272
Ammonioalunite ()*	Alunite	(NH₄)Al₃(SO₄)₂(OH)₆	1	180479	11
Ammoniojarosite ()*	Alunite	(NH₄)Fe³⁺₃(SO₄)₂(OH)₆	2	180479,180483	30
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	1	180389	5509
Baryte ()*	Baryte	Ba(SO₄)	2	180431,180451	11547
Boussingaultite ()*	Picromerite	(NH₄)₂Mg(SO₄)₂·6H₂O	2	180479,180485	30
Calcite ()*	Calcite	Ca(CO₃)	5	180389,180408,180431,180451,180479	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	180389	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	4	180392,180434,180439,180453	3902
Cinnabar ()*	None	HgS	32	180386,180387,180388,180390,180391,180392,180394,180395,180402,180406,180407,180408,180409,180410,180411,180416,180419,180420,180422,180424,180426,180428,180429,180431,180447,180449,180451,180452,180479,180481,180489,180496	2600
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)	1	180479	498
Dolomite ()*	None	CaMg(CO₃)₂	2	180431,180447	9895
Edgarbaileyite ()*	None	Hg¹⁺₆Si₂O₇	1	180431	6
Eglestonite ()*	None	([Hg¹⁺]₂)₃OCl₃(OH)	1	180431	36
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2	180455,180479	8173
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	2	180479,180485	484
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	180479	6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	1	180479	409
Hisingerite ()*	Kaolinite Clay	Fe₂Si₂O₅(OH)₄·2H₂O	1	180471	144
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O	1	180463	341
Idrialite ()*	None	C₂₂H₁₄	1	180451	15
Jadeite ()*	Pyroxene	NaAlSi₂O₆	1	180436	154
Kalinite ()*	None	KAl(SO₄)₂·11H₂O	2	180467,180479	54
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1	180483	5591
Lawsonite ()*	Lawsonite	CaAl₂(Si₂O₇)(OH)₂·H₂O	1	180455	121
Letovicite ()*	None	(NH₄)₃H(SO₄)₂	1	180479	18
Magnesite ()*	Calcite	Mg(CO₃)	16	180408,180419,180431,180437,180438,180440,180442,180443,180444,180446,180448,180451,180456,180460,180461,180464	1487
Mascagnite ()*	Arcanite	(NH₄)₂(SO₄)	2	180479,180485	61
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	1	180479	915
Mercury ()*	None	Hg	11	180387,180388,180390,180394,180408,180411,180416,180431,180451,180490,180496	397
Metacinnabar ()*	Sphalerite	HgS	4	180411,180431,180451,180482	255
Metastibnite ()*	Stibnite	Sb₂S₃	2	180479,180480	87
Millerite ()*	Millerite	NiS	1	180451	1066
Montroydite ()*	None	HgO	2	180394,180431	29
Neotocite ()*	Allophane	(Mn,Fe)SiO₃·H₂O (?)	1	180465	186
Omphacite ()*	Pyroxene	(Ca,Na)(Mg,Fe,Al)Si₂O₆	1	180455	229
Opal ()*	Amorphous	SiO₂·nH₂O	5	180419,180431,180447,180475,180479	2994
Pecoraite ()*	Clay Serpentine	Ni₃Si₂O₅(OH)₄	1	180451	40
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)	1	180479	363
Pentahydrite ()*	Chalcanthite	Mg(SO₄)·5H₂O	1	180479	32
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O	1	180479	265
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	1	180479	1898
Pyrite ()*	Pyrite	FeS₂	5	180407,180431,180447,180451,180479	39462
Pyrolusite ()*	Rutile	MnO₂	1	180458	3106
Quartz ()*	Quartz	SiO₂	8	180389,180394,180408,180411,180431,180447,180451,180474	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	3	180405,180423,180430	1711
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	1	180468	375
Sassolite ()*	None	B(OH)₃	1	180479	31
Stellerite ()*	Stilbite	Ca₄(Si₂₈Al₈)O₇₂·28H₂O	2	180479,180484	189
Sulphur ()*	Sulphur	S	1	180479	2045
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	180462	3337
Tiemannite ()*	Sphalerite	HgSe	1	180431	83
Titanite ()*	Titanite	CaTi(SiO₄)O	1	180479	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	180452	2562
Tridymite ()*	Tridymite	SiO₂	1	180471	458
Tschermigite ()*	Alum	(NH₄)Al(SO₄)₂·12H₂O	2	180479,180486	81
Voltaite ()*	Voltaite	K₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂·18H₂O	2	180479,180487	111
Vuagnatite ()*	Adelite	CaAlSiO₄(OH)	1	180455	14
Wairakite ()*	Analcime	Ca(Si₄Al₂)O₁₂·2H₂O	1	180479	73

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R070277	Socrates Mine, Castle Rock Springs Area, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA	https://rruff.info/R070277
R070597	The Geysers, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA	https://rruff.info/R070597

All locality data graciously provided by mindat.org

All age data...