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Lookout Mine (Hercules group; Lookout prospect; Upper Hercules mine), Ramona, Ramona District, San Diego Co., California, USAi
Regional Level Types
Lookout Mine (Hercules group; Lookout prospect; Upper Hercules mine)Mine
Ramona- not defined -
Ramona DistrictMining District
San Diego Co.County
CaliforniaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84):
33° 3' 37'' North , 116° 47' 27'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
San Diego Country Estates10,109 (2011)6.0km
Ramona20,292 (2011)7.5km
San Pasqual2,041 (2018)15.6km
Julian1,502 (2011)17.7km
Hidden Trails750 (2008)23.3km


Setting:
The Lookout mine is situated 7.4 km (4.6 miles) ENE of Ramona, and joins the Hercules mine on the northeast.

History:
A claim to the pegmatite deposit was first made by Samuel G. Ingle and Harry Titus, of San Diego, and Mr. Pray, of Escondido; in July, 1903.

Note: Work in progress to update this entry including more historic and modern development data, mineral species, references etc.

Regions containing this locality

Pacific OceanOcean
Pacific PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


16 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: San Diego Mining Company, 1995-1997.
'Albite-Anorthite Series'
Reference: San Diego Mining Company (1996)
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: San Diego Mining Company, 1995-1997.
'Almandine-Spessartine Series'
Reference: San Diego Mining Company, 1995-1997.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: San Diego Mining Company, 1995-1997.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
'Clays'
Reference: San Diego Mining Company, 1995-1997.
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: San Diego Mining Company, 1995-1997.
Cookeite
Formula: (Al2Li)Al2(AlSi3O10)(OH)8
Reference: San Diego Mining Company, 1995-1997.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: San Diego Mining Company, 1995-1997.
'Elbaite-Schorl Series'
Reference: San Diego Mining Company, 1995-1997.
'Feldspar Group'
Reference: Kunz, G. F. (1905), Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
'Feldspar Group var: Perthite'
Reference: San Diego Mining Company, 1995-1997.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Kunz, G. F. (1905), Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Grossular ?
Formula: Ca3Al2(SiO4)3
Description: Most likely almandine-spessartine series.
Reference: Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 52; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 195.
Grossular var: Hessonite ?
Formula: Ca3Al2(SiO4)3
Description: Most likely almandine-spessartine series.
Reference: Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 52; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 195.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: San Diego Mining Company, 1995-1997.
'K Feldspar'
Reference: San Diego Mining Company, 1995-1997.
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: San Diego Mining Company, 1995-1997.
'Lepidolite'
Reference: San Diego Mining Company, 1995-1997.
'Manganese Oxides'
Reference: San Diego Mining Company, 1995-1997.
'Mica Group'
Reference: Kunz, G. F. (1905), Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Microcline
Formula: K(AlSi3O8)
Reference: San Diego Mining Company, 1995-1997.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: San Diego Mining Company, 1995-1997.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: San Diego Mining Company, 1995-1997.
Orthoclase
Formula: K(AlSi3O8)
Reference: Kunz, G. F. (1905), Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Quartz
Formula: SiO2
Reference: Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Quartz var: Smoky Quartz
Formula: SiO2
Reference: San Diego Mining Company, 1995-1997.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: San Diego Mining Company, 1995-1997.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.
Stibiotantalite
Formula: Sb(Ta,Nb)O4
Reference: San Diego Mining Company, 1995-1997.
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Reference: San Diego Mining Company, 1995-1997.
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Stibiotantalite4.DE.30Sb(Ta,Nb)O4
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
Clinozoisite9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Cookeite9.EC.55(Al2Li)Al2(AlSi3O10)(OH)8
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Grossular ?9.AD.25Ca3Al2(SiO4)3
var: Hessonite ?9.AD.25Ca3Al2(SiO4)3
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Microcline9.FA.30K(AlSi3O8)
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Almandine-Spessartine Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Clays'-
'Elbaite-Schorl Series'-
'Feldspar Group'-
'var: Perthite'-
'Garnet Group'-X3Z2(SiO4)3
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Lepidolite'-
'Manganese Oxides'-
'Mica Group'-
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Stibiotantalite8.1.6.2Sb(Ta,Nb)O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Grossular ?51.4.3b.2Ca3Al2(SiO4)3
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Clinozoisite58.2.1a.4{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Elbaite61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Cookeite71.4.1.2(Al2Li)Al2(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Albite
var: Cleavelandite
-Na(AlSi3O8)
'Albite-Anorthite Series'-
'Almandine-Spessartine Series'-
Beryl
var: Aquamarine
-Be3Al2Si6O18
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Clays'-
'Elbaite-Schorl Series'-
'Feldspar Group'-
'var: Perthite'-
'Garnet Group'-X3Z2(SiO4)3
Grossular
var: Hessonite ?
-Ca3Al2(SiO4)3
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Kaolinite-Al2(Si2O5)(OH)4
'Lepidolite'-
'Manganese Oxides'-
'Mica Group'-
Quartz
var: Smoky Quartz
-SiO2
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H KaoliniteAl2(Si2O5)(OH)4
H Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Li Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Aquamarine)Be3Al2Si6O18
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O Albite (var: Cleavelandite)Na(AlSi3O8)
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O SpessartineMn32+Al2(SiO4)3
O BerylBe3Al2(Si6O18)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O QuartzSiO2
O AlbiteNa(AlSi3O8)
O OrthoclaseK(AlSi3O8)
O AlmandineFe32+Al2(SiO4)3
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Quartz (var: Smoky Quartz)SiO2
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O StibiotantaliteSb(Ta,Nb)O4
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O KaoliniteAl2(Si2O5)(OH)4
O MicroclineK(AlSi3O8)
O Beryl (var: Aquamarine)Be3Al2Si6O18
O Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
O K Feldspar (var: Adularia)KAlSi3O8
O Garnet GroupX3Z2(SiO4)3
O Grossular (var: Hessonite)Ca3Al2(SiO4)3
O GrossularCa3Al2(SiO4)3
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al BerylBe3Al2(Si6O18)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al AlbiteNa(AlSi3O8)
Al OrthoclaseK(AlSi3O8)
Al AlmandineFe32+Al2(SiO4)3
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al KaoliniteAl2(Si2O5)(OH)4
Al MicroclineK(AlSi3O8)
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
Al K Feldspar (var: Adularia)KAlSi3O8
Al Grossular (var: Hessonite)Ca3Al2(SiO4)3
Al GrossularCa3Al2(SiO4)3
SiSilicon
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si SpessartineMn32+Al2(SiO4)3
Si BerylBe3Al2(Si6O18)
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si QuartzSiO2
Si AlbiteNa(AlSi3O8)
Si OrthoclaseK(AlSi3O8)
Si AlmandineFe32+Al2(SiO4)3
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Quartz (var: Smoky Quartz)SiO2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si KaoliniteAl2(Si2O5)(OH)4
Si MicroclineK(AlSi3O8)
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
Si K Feldspar (var: Adularia)KAlSi3O8
Si Garnet GroupX3Z2(SiO4)3
Si Grossular (var: Hessonite)Ca3Al2(SiO4)3
Si GrossularCa3Al2(SiO4)3
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K OrthoclaseK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
K K Feldspar (var: Adularia)KAlSi3O8
CaCalcium
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca Grossular (var: Hessonite)Ca3Al2(SiO4)3
Ca GrossularCa3Al2(SiO4)3
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe AlmandineFe32+Al2(SiO4)3
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
NbNiobium
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
SbAntimony
Sb StibiotantaliteSb(Ta,Nb)O4
TaTantalum
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
Ta StibiotantaliteSb(Ta,Nb)O4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cretaceous
66 - 145 Ma



ID: 3186295
Mesozoic intrusive rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Late Cretaceous - Middle Jurassic
66 - 174.1 Ma



ID: 2897782
Mesozoic granitic rocks, unit 2 (Peninsular Ranges)

Age: Mesozoic (66 - 174.1 Ma)

Stratigraphic Name: Bonsall Tonalite; Bradley Granodiorite; Cactus Quartz Monzonite; Cajalco Quartz Monzonite; Corona Hornblende Granodiorite Porphyry; Domenigoni Valley Granodiorite; Escondido Creek Leucogranodiorite; Estelle Tonalite; Fargo Canyon Diorite; Green Valley Tonalite; Home Gardens Quartz Monzonite Porphyry; Indian Mountain Leucogranodiorite; Lakeview Mountain Tonalite; Lake Wolford Leucogranodiorite; La Sierra Tonalite; Mount Hole Granodiorite; Rattlesnake Granite; Roblar Leucogranite; San Jacinto Granodiorite; Stonewall Quartz Diorite; Woodson Mountain Granodiorite

Description: Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

Comments: Peninsular Ranges. Primarily tonalite, granodiorite, and minor quartz monzonite and granite. Emplacement ages mostly 80 to 105 Ma in eastern part of area and 105 to 140 Ma in western part; minor Jurassic rocks in central part Original map source: Saucedo, G.J., Bedford, D.R., Raines, G.L., Miller, R.J., and Wentworth, C.M., 2000, GIS Data for the Geologic Map of California, California Department of Conservation, Division of Mines and Geology, CD-ROM 2000-07, scale 1:750,000.

Lithology: Major:{tonalite}, Minor:{quartz diorite,granodiorite,quartz monzonite}, Incidental:{granite, pegmatite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 148-149.
Merrill, F. J. H. (1914), Geology and Mineral Resources of San Diego and Imperial Counties: Gems, Lithia Minerals. California State Mining Bureau, San Francisco, Cal. California State Printing Office, December. Chapter 1: 63, 72.
Weber, F. H., Jr. (1963a), Mines and mineral resources of San Diego County, California. California Division of Mines and Geology County Report 3, p. 106; 309 pp.: Pl. 5.
Murdoch, Joseph & Webb, Robert W. (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 195.
Pemberton, H. Earl (1983), Minerals of California: 455 (map 13-4).


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