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:
Ramona, Ramona District, San Diego Co., California, USA

Oldest recorded age at locality: 99
Youngest recorded age at locality: 95

mindat Locality ID: 48306
mindat URL: http://www.mindat.org/loc-48306.html

Tectonic Settings:

Total number of sublocalities beneath "Ramona, Ramona District, San Diego Co., California, USA": 26
Total number of bottom-level sublocalities: 26

Number of Child Localities: 26
Child Localities:
A.B.C. Mine (ABC Mine; Daggett & MacIntosh; Daggett Group)
Apollo Lode Claim
Ballena Placer Deposits (Hopkins Placer Mining Company; Willard; Sawday Ranch Placer Deposit)
Cable Mine (Little Three Extension Prospect; New A.B.C. Prospect; New ABC Prospect)
Coyote Diggings
Daley Mine (Barona Mine; Barona Claims)
Equestrian Prospect
Fraction Claim
Hatfield Creek
Hatfield Creek Quarry
Hercules Mine (Beryl Claim; Hercules Claim; Hercules Group; Hercules Prospect)
Judson Ranch Deposit
Little Three Mine (Little 3 Mine)
Little Three Mine Area
Lookout Mine (Hercules Group; Lookout Prospect; Upper Hercules Mine)
Moore Pit
Mykrantz Deposit (San Vincente Deposit; Mykrantz Deposit San Vincente)
Olive Street Pit
Prospect Mine (Prophet Prospect; Prospect Prospect)
Sonny Boy Mine (Sonny Boy Claim)
Southeast Of Ramona
Sunrise Claim (Black Panther Prospect)
Surprise Mine
Unnamed Gemstone Prospect
Unnamed Pegmatite
West Of Ramona

Latitude: 33°3'22"N
Longitude: 116°48'44"W
Decimal Degree (lat, lon): 33.056111111111,-116.81222222222

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.

Analcime	Apatite	Aragonite	Arsenic	Axinite	Beryl	Bismutite	Chalcopyrite	Chlorite	Clay
Clinozoisite	Columbite	Danburite	Diaspore	Epidote	Feldspar	Garnet	Kaolinite	Malachite	Mica
Molybdenite	None	Not in a structural group	Perovskite	Pyrite	Quartz	Rutile	Scheelite	Smectite-vermiculite	Spinel
Stibnite	Stilbite	Talc	Topaz	Tourmaline	Triplite	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: Al B Ba Be Bi C Ca Cs Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb S Sb Si Sn Sr Ta V Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Apatite Aragonite Arsenic Axinite Beryl Bismutite Chalcopyrite Chlorite Clay
Clinozoisite Columbite Danburite Diaspore Epidote Feldspar Garnet Kaolinite Malachite Mica
Molybdenite None Not in a structural group Perovskite Pyrite Quartz Rutile Scheelite Smectite-vermiculite Spinel
Stibnite Stilbite Talc Topaz Tourmaline Triplite Zircon

52 IMA Minerals at location:

Albite ()*	Almandine ()*	Axinite-(Mn) ()*	Azurite ()*	Beryl ()*
Beyerite ()*	Bismite ()*	Bismuth ()*	Bismuthinite ()*	Bismutite ()*
Boromuscovite ()*	Cassiterite ()*	Cerussite ()*	Chalcopyrite ()*	Clinozoisite ()*
Columbite-(Fe) ()*	Columbite-(Mn) ()*	Cookeite ()*	Cryolite ()*	Danburite ()*
Elbaite ()*	Epidote ()*	Fluorapatite ()*	Foitite ()*	Goethite ()*
Hambergite ()*	Kaolinite ()*	Laumontite ()*	Magnetite ()*	Malachite ()*
Microcline ()*	Molybdenite ()*	Montmorillonite ()*	Muscovite ()*	Orthoclase ()*
Pollucite ()*	Pucherite ()*	Pyrite ()*	Quartz ()*	Schorl ()*
Sillimanite ()*	Spessartine ()*	Stibiocolumbite ()*	Stibiotantalite ()*	Stilbite-Ca ()*
Talc ()*	Tenorite ()*	Todorokite ()*	Topaz ()*	Triplite ()*
Vermiculite ()*	Zircon ()*

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
Albite ()*	Feldspar	Na(AlSi₃O₈)	99	95	11	174993,174994,174997,174999,175003,175005,175006,175007,175011,175014,175015	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	99	95	5	174994,174997,174999,175005,175007	2353
Axinite-(Mn) ()*	Axinite	Ca₄Mn²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	99	95	2	175003,175005	88
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			1	174998	5509
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	99	95	8	174993,174996,175003,175005,175006,175007,175014,175015	4286
Beyerite ()*	Bismutite	CaBi₂O₂(CO₃)₂	99	95	1	175005	96
Bismite ()*	None	Bi₂O₃	99	95	1	175005	214
Bismuth ()*	Arsenic	Bi	99	95	1	175005	1966
Bismuthinite ()*	Stibnite	Bi₂S₃			1	175003	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	99	95	1	175005	716
Boromuscovite ()*	Mica	KAl₂(Si₃B)O₁₀(OH)₂	99	95	1	175005	5
Cassiterite ()*	Rutile	SnO₂	99	95	2	175005,175017	5171
Cerussite ()*	Aragonite	Pb(CO₃)	99	95	1	175005	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	174998	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	99	95	3	175003,175005,175007	1025
Columbite-(Fe) ()*	Columbite	Fe²⁺Nb₂O₆	99	95	2	175003,175005	518
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	99	95	2	175003,175005	289
Cookeite ()*	Chlorite Clay	(Al,Li)₃Al₂(Si,Al)₄O₁₀(OH)₈	99	95	4	174996,175003,175005,175007	181
Cryolite ()*	Perovskite	Na₂NaAlF₆	99	95	1	175005	50
Danburite ()*	Danburite	CaB₂Si₂O₈	99	95	2	175005,175006	148
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	99	95	6	174996,175003,175005,175006,175007,175015	520
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	99	95	2	175003,175005	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	99	95	2	175003,175005	2740
Foitite ()*	Tourmaline	(Fe²⁺₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	99	95	1	175005	75
Goethite ()*	Diaspore	FeO(OH)	99	95	3	175003,175005,175015	7437
Hambergite ()*	None	Be₂(BO₃)(OH)	99	95	1	175005	81
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	99	95	5	174993,174997,175003,175005,175007	5591
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	99	95	2	175003,175005	1271
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	175015	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	174998	12537
Microcline ()*	Feldspar	K(AlSi₃O₈)	99	95	5	174994,175003,175005,175007,175011	4924
Molybdenite ()*	Molybdenite	MoS₂			1	175018	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	99	95	4	174993,175003,175005,175007	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	99	95	9	174993,174994,174997,174999,175003,175005,175007,175011,175015	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	99	95	9	174993,174994,174997,174999,175003,175005,175007,175011,175015	2349
Pollucite ()*	Analcime	Cs(Si₂Al)O₆·nH₂O	99	95	1	175005	140
Pucherite ()*	Scheelite	Bi(VO₄)	99	95	1	175005	53
Pyrite ()*	Pyrite	FeS₂			1	174998	39462
Quartz ()*	Quartz	SiO₂	99	95	11	174993,174994,174996,174997,174999,175003,175005,175007,175011,175014,175015	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	99	95	11	174993,174994,174997,174999,175003,175005,175006,175007,175011,175014,175015	2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅			1	175013	1516
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	99	95	11	174993,174994,174996,174997,174999,175003,175005,175006,175007,175011,175015	1214
Stibiocolumbite ()*	None	SbNbO₄	99	95	1	175005	13
Stibiotantalite ()*	None	Sb³⁺TaO₄	99	95	3	174996,175005,175007	53
Stilbite-Ca ()*	Stilbite	NaCa₄(Si₂₇Al₉)O₇₂·28H₂O	99	95	1	175005	268
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	174993	3337
Tenorite ()*	None	CuO			1	174998	1101
Todorokite ()*	None	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂·3-4H₂O	99	95	1	175005	433
Topaz ()*	Topaz	Al₂SiO₄F₂	99	95	5	174996,175003,175005,175006,175015	1476
Triplite ()*	Triplite	Mn²⁺₂(PO₄)F			1	175015	233
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	99	95	2	175003,175005	652
Zircon ()*	Zircon	Zr(SiO₄)	99	95	1	175005	5251

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
	Bradley_2012_014	99	95	97±2	Ar/Ar			muscovite				Muscovite			3561	Little Three Mine (Little 3 Mine), Ramona, Ramona District, San Diego Co., California, USA	Little Three Mine	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL
X050149	Ramona, Ramona District, San Diego Co., California, USA	https://rruff.info/X050149
R070107	Little Three Mine (Little 3 Mine), Ramona, Ramona District, San Diego Co., California, USA	https://rruff.info/R070107

All locality data graciously provided by mindat.org

All age data...