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:
Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA

Oldest recorded age at locality: 200
Youngest recorded age at locality: 0

mindat Locality ID: 28133
mindat URL: http://www.mindat.org/loc-28133.html

Tectonic Settings:

Total number of sublocalities beneath "Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA": 54
Total number of bottom-level sublocalities: 50

Number of Child Localities: 44
Child Localities:
Alabama Mine (Alabama Claim; Hooker Claim)
Alameda Mine
Allen Mine
Badger Mine
Belcher Mine
Best Twenty Placer
Blue Jacket Placer
Carlin Claim
Carlin Mine
Chantreau Mine
Defender Mine
Farmington Mine
Florence Occurrence
Gem Mine [2]
Jamestown Mine (Jamestown Group)
Kahl Ranch Mine (Kohl Ranch)
Little Alabama Mine
Little Gem Mine (Harris Mine)
Mangante Mine
Mascott Claim
Mexican Flat Placer
O'Donnell Mine
Ohio Diggings Mine (Mackey Ranch Mine; McKay Ranch Deposit)
Omega Mine
Ophir Mine
Pena Blanco Mines Group (Pena Blanco Claim; Peno Blanco; Doctor Claim; Lookout Claim; Lucky Star Claim; Sarah Francis Claim)
Premier Asbestos Mine
Quigg Mine (Kahl Mine [1908])
Rawhide Asbestos Deposit (Rawhide Claim Nos. 1 2 & 3; Rawhide Claim No. 2; Rawhide Claim No. 3)
Red Cross Placer Mine (Omega; Omega Table Mountain Gravel)
Rowe And Swerer Mine (Rowe And Swerer Occurrence)
Shell Ranch Prospect
Shore Mine
South Ysabel Mine
Sunday Mine (Sunday Claim)
Sweeney Mine
Tiger Placer
Unnamed Be Occurrence [1]
Unnamed Slate Occurrence [1]
Unspecified Au Occurrence [10]
Unspecified Beryl Occurrence [1]
Unspecified Occurrences Near Jamestown
Valponi Placer
Vulture Mine (Donovan Mine)

Latitude: 37°57'11"N
Longitude: 120°26'21"W
Decimal Degree (lat, lon): 37.953055555556,-120.43916666667

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	Apatite	Beryl	Calcite	Chalcopyrite	Clay	Cobaltite	Copper	Corundum	Cristobalite
Garnet	Malachite	Melonite	Mica	Millerite	None	Not in a structural group	Pyrite	Pyroxene	Quartz
Rocksalt	Rutile	Serpentine	Sphalerite	Spinel	Talc	Tetradymite	Tetrahedrite	Titanite	Tridymite

Acanthite ()*	Altaite ()*	Ankerite ()*	Antigorite ()*	Augite ()*
Azurite ()*	Beryl ()*	Calaverite ()*	Calcite ()*	Chalcopyrite ()*
Chenguodaite ()*	Chromite ()*	Chrysotile ()*	Cobaltite ()*	Coloradoite ()*
Cristobalite ()*	Dolomite ()*	Enstatite ()*	Fluorapatite ()*	Galena ()*
Gold ()*	Graphite ()*	Hessite ()*	Ilmenite ()*	Imiterite ()*
Magnesiochromite ()*	Magnesite ()*	Magnetite ()*	Malachite ()*	Melonite ()*
Millerite ()*	Muscovite ()*	Gersdorffite-Pa3 ()*	Petzite ()*	Pitticite ()*
Pyrite ()*	Quartz ()*	Rutile ()*	Scorodite ()*	Siderite ()*
Siegenite ()*	Sphalerite ()*	Sylvanite ()*	Talc ()*	Tellurium ()*
Tennantite-(Fe) ()*	Tetradymite ()*	Tetrahedrite-(Zn) ()*	Titanite ()*	Tridymite ()*
Uvarovite ()*

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 Co Cr Cu F Fe H Hg K Mg Ni O P Pb S Sb Si Te Ti Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Apatite Beryl Calcite Chalcopyrite Clay Cobaltite Copper Corundum Cristobalite
Garnet Malachite Melonite Mica Millerite None Not in a structural group Pyrite Pyroxene Quartz
Rocksalt Rutile Serpentine Sphalerite Spinel Talc Tetradymite Tetrahedrite Titanite Tridymite

51 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
Acanthite ()*	Acanthite	Ag₂S	5.3	0	1	183478	2793
Altaite ()*	Rocksalt	PbTe	5.3	0	1	183480	489
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	5.3	0	4	183461,183474,183479,183513	3092
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	5.3	0	1	183496	708
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	5.3	0	1	183511	2060
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	5.3	0	1	183492	5509
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	5.3	0	1	183510	4286
Calaverite ()*	Melonite	AuTe₂	5.3	0	1	183480	361
Calcite ()*	Calcite	Ca(CO₃)	5.3	0	3	183474,183480,183481	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	5.3	0	2	183474,183492	27198
Chenguodaite ()*	None	Ag₉FeTe₂S₄	5.3	0	1	183478	2
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	5.3	0	1	183474	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	5.3	0	2	183474,183496	951
Cobaltite ()*	Cobaltite	CoAsS	5.3	0	1	183474	966
Coloradoite ()*	Sphalerite	HgTe	5.3	0	1	183474	169
Cristobalite ()*	Cristobalite	SiO₂	5.3	0	1	183511	453
Dolomite ()*	None	CaMg(CO₃)₂	5.3	0	6	183477,183480,183481,183482,183483,183499	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	200	200	1	183497	944
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	5.3	0	1	183474	2740
Galena ()*	Rocksalt	PbS	5.3	0	2	183474,183478	24243
Gold ()*	Copper	Au	5.3	0	28	183460,183461,183463,183464,183468,183469,183470,183473,183474,183475,183477,183478,183479,183480,183481,183482,183483,183487,183488,183491,183493,183495,183499,183501,183502,183503,183505,183513	30554
Graphite ()*	None	C	5.3	0	1	183474	2812
Hessite ()*	None	Ag₂Te	5.3	0	3	183474,183480,183481	804
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	5.3	0	1	183474	5433
Imiterite ()*	None	Ag₂HgS₂	5.3	0	1	183480	17
Magnesiochromite ()*	Spinel	MgCr₂O₄	200	0	3	183497,183500,183504	311
Magnesite ()*	Calcite	Mg(CO₃)	5.3	0	2	183461,183480	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	5.3	0	1	183474	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	5.3	0	1	183492	12537
Melonite ()*	Melonite	NiTe₂	5.3	0	1	183474	207
Millerite ()*	Millerite	NiS	5.3	0	1	183474	1066
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	5.3	0	3	183474,183478,183482	17380
Gersdorffite-Pa3 ()*	Pyrite	NiAsS	5.3	0	1	183474	767
Petzite ()*	None	Ag₃AuTe₂	5.3	0	3	183474,183478,183480	409
Pitticite ()*	None	[Fe,AsO₄,SO₄,H₂O] (?)	5.3	0	1	183468	140
Pyrite ()*	Pyrite	FeS₂	5.3	0	5	183474,183479,183480,183482,183499	39462
Quartz ()*	Quartz	SiO₂	5.3	0	11	183461,183473,183474,183477,183478,183479,183480,183487,183499,183505,183513	61156
Rutile ()*	Rutile	TiO₂	5.3	0	1	183474	5614
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	5.3	0	1	183511	1153
Siderite ()*	Calcite	Fe(CO₃)	5.3	0	1	183474	6417
Siegenite ()*	Spinel	CoNi₂S₄	5.3	0	1	183474	249
Sphalerite ()*	Sphalerite	ZnS	5.3	0	1	183474	21482
Sylvanite ()*	Melonite	AgAuTe₄	5.3	0	1	183480	337
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	5.3	0	3	183461,183474,183477	3337
Tellurium ()*	None	Te	5.3	0	1	183474	190
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	5.3	0	1	183482	1803
Tetradymite ()*	Tetradymite	Bi₂Te₂S	5.3	0	2	183480,183481	510
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	5.3	0	3	183461,183474,183480	5317
Titanite ()*	Titanite	CaTi(SiO₄)O	5.3	0	1	183474	4899
Tridymite ()*	Tridymite	SiO₂	5.3	0	1	183511	458
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃	200	200	1	183497	212

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	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 DOI	Reference ID
Hg-00034	5.3	0		?-?		Imiterite	Hg	3581	Golden Rule Mine, Jumper & Golden Rule Group (Jumper Mine; Jumper Claim; Jumper Deposit; New Era Claim), Jamestown Mine (Jamestown Group), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA	California Mercury Occurrences	Studemeister (1984)	10.1007/BF00199786	MD19_202
podchrome-00084	200	200	Lower Jurassic (200±10 Ma hornblende from wehrlite)				Cr	98110	Quigg Mine (Kahl Mine [1908]), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA	Quigg	Moiser et al. (2012)		USGSSIR2012_5157
NAVDAT-7499	65	0	32.5±32.5		7499			98245	Unspecified Au Occurrence [10], Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL
R050061	Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA	https://rruff.info/R050061

All locality data graciously provided by mindat.org

All age data...